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Section 1

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Geometry Math

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6 years ago

Date created

Mar 1, 2020

Cards (18)

Section 1

(18 cards)

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Front

1) congruent corresponding angles, and 2) proportional corresponding sides

Back

What's important for a cheese grater problem?

Front

check if the lines are parallel!

Back

How to solve for x in Right Triangle Similarity?

Front

-need right triangle -drop an altitude to hypotenuse -create similar triangles -draw arrows (don't cross the fence) -set up geometric mean of the two arrows

Back

What makes polygons similar

Front

corresponding angles are congruent, corresponding sides are proportional

Back

Altitude

Front

perpendicular segment from opposite vertex to the line containing the base

Back

How to solve triangle angle bisector?

Front

Draw arrows (don't cross the fence), set up a proportion, cross-multiply, solve

Back

Proportional

Front

existing in constant ratio

Back

Theorem 6-4 (cheese grater)

Front

if three or more parallel lines cut congruent segments on a single transversal, then the parallel lines will cut congruent segments on every transversal

Back

Geometric Mean

Front

square root of a product

Back

Quadratic Formula

Front

Back

Golden Ratio

Front

Back

Right triangle

Front

triangle with a right angle

Back

Postulate 8-1, Angle angle similarity

Front

if 2 angles pf one triangle are congruent to two angles of another, then ∆1∼∆2

Back

How many ways to prove triangles similar?

Front

3 ways

Back

Corollary to Th 8-4

Front

if three parallel lines intersect two transversals, then the segments intercepted on the transversals are proportional

Back

Theorem 8-1 Side angle side similarity

Front

if an angle of one triangle is congruent to an angle of another triangle and the sides making those angles are proportional, then ∆1∼∆2

Back

Hypotenuse

Front

side opposite the right angle in a right triangle

Back

Theorem 8-2 side side side similarity

Front

if the three sides one triangle are proportional to the three sides of another triangle, then ∆1∼∆2

Back