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73 Cards in this Set
- Front
- Back
- 3rd side (hint)
How do you name a line |
Lower case script (cursive) letter or two points contained on the line with a two headed arrow above them |
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How is a point represented? |
captal letter |
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Two points define a __________ |
line |
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What is precision? |
way to see how accurate a measurement is |
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If a measurement is given as 5 3/16 how can the precision of the measurement be found? |
take 1/16 and multiply by 1/2 and add and subtract if from 5 3/16 to determine what the value is between |
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If a point lies on a segment the three points are said to be _____________ |
collinear |
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.If A is between B and D what two segments can you add together to get length of BD |
AB+BD |
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Name the point that splits segment intotwo congruent segments |
Midpoint |
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if A is between B and D and AB = 8, AD = 2x+7, and BD=4x-3 find the length of BD |
33 |
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if B is the midpoint of AC and AB = 2x+5, and AC=30 in, What is x? |
5 |
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find the midpoint of (1,1) and (9,7) |
(5,4) |
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How do you find the midpoint of a segment given the coordinates |
Add the x values and divide by 2 to find the x coordinate Add the y values and divide by 2 to find the y coordinate |
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if alternate interior angles are congruent the lines cut by the transversal are ___ |
parallel |
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if alternate exterior angles are NOT congruent the lines cut by the transversal are ___ |
not parallel |
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How do you find the distance between two points |
Subtract the x values and square then subbtract the y values and square the take the square root of those two values added together |
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What is the midpoint of (2,1) (5,3) |
(3.5,2) |
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What is the perimeter of the triangle P(0,0),Q(8,6), R(3,4) |
26.2 |
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what is a segment bisector |
cuts a segment into two congruent halves |
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what is an angle bisector |
segment from the vertex of an angle that cuts the angle into two congruent angles |
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what is the symbol for a perpendicular line |
upside down T |
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angle that equals 90 degrees |
right angle |
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angle that is less than 90 degrees |
acute angle |
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angle that is more than 90 degrees |
obtuse angle |
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two perpendicular lines for what type of angle |
right |
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polygon with 3 sides |
triangle |
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polygon with 5 sides |
pentagon |
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polygon with 6 sides |
hexagon |
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polygon with seven sides |
heptagon |
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polygon with 8 sides |
octagon |
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polygon that the angles and sides are all congruent |
regular |
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polygon in which the diagonals are all inside the polygon |
convex |
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What is a concave polygon |
polygon in which one or more diagonals is outside of the polygon |
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what is the perimeter of a pentagon with side length of 4cm |
20 cm |
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What is the perimeter of a regular triangle with side length of 2x+3 and 3x |
27 |
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non-coplanar lines that never intersect |
skew |
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coplanar lines that never intersect |
parallel |
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if consecutive interior angles are supplementary then the two lines are _________ |
parallel |
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supplementary angles |
two angles that add up to 180 |
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complementary angles |
two angles that add up to 90 |
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what are the slopes of parallel lines |
same or equal to each other |
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What are the slopes of two perpendicular lines |
Negative inverses (negative reciprocalsWhat ) |
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What is the slope of a line with the points (-5,6) and (-3,2) |
-2 |
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a |
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are lines AB and XY parallel, perpendicular, or neither X(-6,-7) Y(-3,-5) A(3,3) B(7,9) |
perpendicular |
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If you work a job that pays $10 per hour plus a 10% commission on mechandise you sell. Write and equation to find your earning in a week if you sold $500 of merchandise. How much would you earn if you worked 20 hours in that week? |
10X + 550(0.1) $255What |
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What is slope intercept form |
y-mx+b |
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What is point slope form |
y-y1=m(x-x1) |
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Write the slope intercept form of an equation with a slope of -2 and a y-intercept of 4 |
y=-2x+4 |
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What is the slope intercept form of the equation for the line m=3, and contains the point (-1,6) |
y=3x+9 |
put values given into point slope form and then rearrange into slope intercept form |
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What is slope intercept for the following x-intercept is -3, y-intercept is 1 |
y=3x+1 |
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find the slope intercept form of the equation passing through the points (-7,9), (6,-4) |
y=-x+2 |
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What is the distance between the parallel lines y=x-2 and y=x+4 |
4.2 |
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an equilangular triangle is also an example of what type of triangel |
acute |
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the angles of an equilangular triangle equal _________ |
60 degrees |
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Triangle with a measure greater than 90 degrees |
obtuse triangle |
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triangle with two sides congruent |
isosceles triangle |
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triangle with three different length sides |
scalene |
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what are the names of three types of congruence transformations |
rotations, reflections, and translation |
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what does translation of a figure mean |
figure is moved left/right or up/down |
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what does rotation of a figure mean |
figure is rotated about a fixed point |
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what does reflection of a figure mean |
figure is reflected over the x or y axis each point on the new figure is equal distant from the axis as the point on the original figure |
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Where is the included side located? |
between two consecutive angles of a polygon |
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Which angles of an isosceles triangle are congruent |
base angles |
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What type of triangle is always equilangular |
equilateral |
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what type of proof uses a coordinate plane and algebra to prove geometric concepts |
coordinate proof |
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triangle ABC is an isosceles triangle. angle B is the vertex angle,AB=20x-2, BC=12x+30, and AC=25x, Find X then find the measure of each side of the triangle |
x=4, AC=100, AB=78, BC=78 |
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if A(0,4), B(5,4) and C(-3,-2) find the measure of the sides of the triangle. Then classify the triangle |
AB=5, BC=10, AC=square root of 45 scalene triangle |
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the exterior angle of a triangle is equal to what? |
addition of the two remoter interior angles |
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if triangle ABC is congruent to triangle DEF name the corresponding congruent parts |
angles A=D, B=E, C=F sides AB=DE, AC=DF, BC=EF |
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use the distance formula to determine if the two triangles are congruent G(1,2), H(5,4), I(3,6) J(-4,-5), K(0,3), L(-2,-1) |
not congruent |
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Angles of a triangle add up to what ? |
180 |
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all the angles that go together to form a line = how many degrees |
180 |
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