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37 Cards in this Set

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  • Back
What type of angle measures less than 90 degrees?
acute
Write the converse:
If I like school, then I am cool.
If I am cool, then I like school.
adjacent angles in a parallelogram are?
supplementary
How do you find the maximum area of a rectangle?
Divide the perimeter by four, then square the number (multiply times itself)
linear pair
180 degrees together
Write the first statement for an indirect proof of:
All rectangles are parallelograms.
All rectangles are not parallelograms.
vertical angles
make an X and are congruent when across from each other
If a+3>5, then a >2.
Subtraction property of inequality.
If a=b, and b=c, then a = c.
Transitive property
How do you know if 2 lines are parallel?
same slope

If q then p
is the same as ?
If ~p then ~ q.
What type of angle measures exactly 90 degrees?
right
vertical angles
make an X and are congruent when across from each other
What is the greatest number of pieces of pizza you can make using 3 straight cuts?
7
How many different ways can three people sit around a table?
6
If the area of a triangle is 48 and the base is 12, find the height. A=1/2bh
8
angles that measure 180 degrees together
supplementary
what is the median of a triangle?
segment from a vertex to the opposite side that intersects at the midpoint
opposite angles in a parallelgram are?
congruent
How many right angles can there be in a triangle?
1
not p
~p
If xy=bc, then bc=xy.
Symmetric property
angles that measure 90 degrees together
complementary
What type of angle measures more than 90 degrees?
obtuse
If ab=ab, then ab=ab.
Reflexive property
What are the 3 undefined terms in geometry?
point, line, plane
Write the inverse of:
If I like school, then I am cool.
If I don't like school, then I am not cool.
How many obtuse angles can there be in a triangle?
1
Find the distance between 2 points.
use the distance formula:
the square roof of:
(x2-x1)to the second power +
(y2-y1)to the second power.
How do you know if 2 lines are perpendicular?
opposite reciprocal slopes
Write the contrapositive:
If I like school, then I am cool.
If I am not cool, then I do not like school.
What are skew lines?
Lines that do not intersect and are not parallel
If a then b and a is true, what is b? (true/false)
true
what is an altitude of a triangle?
perpendicular distance from a vertex to the opposite side
what is the pythagorean theorem?
a squared plus b squared equals c squared
Could 3 sides of a triangle be 12,12,and 12?
yes- equilateral triangle
If a + b = c + b, then a=c.
The subtraction property of equality.