Quiz about Similar Figures and Proportions

Question 1

Are the triangles similar?

Accepted Answer

Yes

Answer

No

Question 2

Are the triangles similar?

Accepted Answer

No

Answer

Yes

Question 3

All corresponding sides are proportional (same ratio) in similar figures.

Accepted Answer

True

Answer

False

Question 4

All corresponding angles are congruent in similar figures.

Accepted Answer

True

Answer

False

Question 5

The triangles are similar.  Find x

Accepted Answer

30

Answer

90

Answer

60

Answer

15

Question 6

Question 6.

Accepted Answer

JKL and PQR

Answer

JKL and MNO

Answer

MNO and PQR

Answer

None

Question 7

A triangle is dilated by a scale factor of 2. If the original area was 24, what will be the new area?

Accepted Answer

48

Answer

24

Answer

2

Answer

12

Question 8

Question 8.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 9

Question 9.

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 10

The area of a triangle is 20 square units. If the triangle is dilated by a scale factor of 2, which statement is true?

Accepted Answer

The area of the new triangle will be 4 times the area of the new triangle.

Answer

The area of the new triangle will be 2 times the area of the old triangle.

Answer

The area of the new triangle will be 3 times the area of the old triangle.

Answer

The two triangles will have the same area.

Question 11

A square is dilated by a scale factor of 4.3. Which statement is true?

Accepted Answer

The area of the new square will be 18.49 times the area of the old square.

Answer

The perimeter of the new square will be 18.49 times the perimeter of the old square.

Answer

The perimeter of the new square will be 3 times the perimeter of the old square.

Answer

The area of the new square will be 4.3 times the area of the old square.

Question 12

If a shape is dilated, how do you find the new perimeter?

Accepted Answer

You multiply the old perimeter by the scale factor used in the dilation.

Answer

You square the scale factor used in the dilation. Then multiply the old perimeter by the squared scale factor.

Question 13

If a shape is dilated, how do you find the new area?

Accepted Answer

You square the scale factor used in the dilation. Then multiply the old area by the squared scale factor.

Answer

You multiply the old area by the scale factor used in the dilation.

Question 14

Question 14.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 15

Question 15.

Accepted Answer

H

Answer

F

Answer

G

Answer

J

Question 16

Question 16.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 17

Question 17.

Accepted Answer

J

Answer

F

Answer

G

Answer

H

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