Geometry - Chapter 7 Test Review

yes, AA (vertical angles create the second pair of congruent corresponding angles)

Are these triangles similar? If so, why?

AA

What shortcut shows that these triangles similar?

27

A salsa recipe uses green pepper, onion, and tomato in the extended ratio 1:3:9. How many cups of onion are needed to make 117 cups of salsa?

No

Are these triangles similar? If so, why?

Yes, SSS

Are these triangles similar? If so, why?

Yes, SSS and AA

Are these triangles similar? If so, why?

125

Red and gray bricks were used to build a decorative wall. The number of red bricks to number of gray bricks was 5/2. There were 175 bricks used in all. How many red bricks were used?

x = 1.33

Solve for x.

x = 10.2

Solve for x.

x = 13

Solve for x.

x = 14

Solve for x.

3

The bases of the 2 triangles are parallel. Find the length of x.

21.6

The bases of the 2 triangles are parallel. Find the length of y.

24.5

The polygons are similar. Find x.

7

The polygons are similar. Find x.

9

The polygons are similar. Find x.

6.67

The triangles are similar. Find z.

8/4 = 24/12

The two rectangles are similar. Which is the correct proportion for corresponding sides? (Small Rectangle) 4m and 12m (Large Rectangle) 8m and 24m

18

These triangles are similar. Find x.

2.7

These triangles are similar. What is the length of the missing side?

4.5

These triangles are similar. What is the length of the missing side?

6

These triangles are similar. What is the length of the missing side?

7.2

These triangles are similar. What is the length of the missing side?

SSS

What shortcut shows that these triangles similar?

A, B, and C

Which triangles are similar here?

SSS-similarity

if three sides of one triangle are proportional to three corresponding sides of another triangle, then the triangles are similar

AA-similarity

if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar

SAS-similarity

if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar