Similar Shapes & Scale Factor Quiz

Two triangles have side lengths in the ratio 3:4:5 and 6:8:10. Are these triangles similar?

• Yes

• No

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

If two rectangles are similar and the ratio of their corresponding sides is 2:5, what is the ratio of their areas?

• 2:5

• 4:25

• 5:2

• 10:25

A triangle has sides of lengths 5 cm, 12 cm, and 13 cm. Another triangle has sides of lengths 10 cm, 24 cm, and 26 cm. Are these triangles similar?

• Yes

• No

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Find the scale factor of two similar triangles where the sides of the smaller triangle are 7 cm, 24 cm, and 25 cm, and the corresponding sides of the larger triangle are 14 cm, 48 cm, and 50 cm.

• 1

• 2

• 3

• 4

Two squares have areas of 36 sq cm and 144 sq cm. What is the scale factor of their sides?

• 2

• 3

• 4

• 6

Tags

CCSS.7.G.A.1

A rectangle has dimensions 4 cm by 6 cm. A similar rectangle has a shorter side of 8 cm. What is the length of the longer side of the second rectangle?

• 10 cm

• 12 cm

• 14 cm

• 16 cm

Tags

CCSS.7.G.A.1

Two triangles are similar. The first triangle has sides 5 cm, 12 cm, and 13 cm. If the second triangle has a longest side of 26 cm, what is the length of the shortest side?

• 5 cm

• 10 cm

• 13 cm

• 15 cm

Tags

CCSS.HSG.SRT.A.2

A triangle has sides 3 cm, 4 cm, and 5 cm. A similar triangle has a hypotenuse of 15 cm. What is the length of the shortest side of the larger triangle?

• 6 cm

• 9 cm

• 12 cm

• 15 cm

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Find side length X.

• 30
• 25
• 15
• 40

Tags

CCSS.HSG.SRT.A.2

Find missing side

• 5
• 7
• 9
• 11

Tags

CCSS.HSG.SRT.A.2