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31 Cards in this Set
- Front
- Back
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What formula should you use to find the length of a segment?
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The distance formula |
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How do you find the perimeter? |
Find the length of each side. Add all the lengths to find the total. |
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How do you find the area? |
Write the formula down. Find the length of each part, substitute into the formula. Evaluate. |
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What is the relationship between the base and height? |
They are perpendicular |
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How do you prove parallel lines? |
Show they have the same slope |
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How do you prove a parallelogram using slope? |
Prove the opposite sides are parallel. |
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How do you prove perpendicular Lines? |
Show the product of the slopes are equal to –1 |
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How do you prove right angles? |
Show the product of the slopes of the sides equals –1 |
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How do you prove a rhombus? |
Prove the diagonals are perpendicular |
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How do you prove a square? |
Prove that it is a rectangle and a rhombus |
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What are the three steps to a Coordinate proof? |
1) Write down how to prove it. 2) Write what you think to be true, then prove it with math. 3) Write a mathematical statement summarizing the proof. |
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What does congruent mean? |
An object has the same shape and length. |
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How do you prove congruence? |
Show the length is equal |
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What formula do you use for length? |
The distance formula |
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How do you prove a parallelogram using distance? |
The opposite sides are congruent |
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How do you prove a rectangle using distance? |
The diagonals are congruent |
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How do you prove a rhombus using distance? |
All four sides are congruent |
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How do you prove a square? |
It is a rectangle and a rhombus |
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How do you find the midpoint? |
Average the x-coordinates, then average the y-coordinates |
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How do you prove two triangles are congruent? |
Side - side - side |
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How do you prove parts of congruent triangles are congruent? |
CPCTC |
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What is a scalene triangle? |
No sides are congruent |
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What is an isosceles triangle? |
Two sides are congruent |
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What is an equilateral triangle? |
All three sides are congruent |
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What is slope-intercept form? |
Y = mx + b |
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What is the slope of a vertical line? |
Undefined or no slope |
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What is the slope of a horizontal line? |
Zero |
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What is the equation of a horizontal line? |
Y = k , where k is a constant |
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What is the equation of a vertical line? |
X = k , where k is a constant |
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How do you find a perpendicular slope? |
Find the opposite reciprocal |
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How do you find the slope of a linear equation? |
Solve for y, then find what is multiplied to x |
