Missing Triangle Side Perimeter

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

Tags

CCSS.HSG.SRT.A.2

What is the measure of x?

• 12

• 15

• 6

• 9

Tags

CCSS.HSG.SRT.B.5

Find the perimeter of the large triangle. (First find the missing side length)

• 24

• 36

• 12

• 54

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4

Tags

CCSS.HSG.SRT.A.2

Find the missing side of the large triangle, then, find the PERIMETER of the large triangle.

• the missing side is 12, the perimeter is 24

• the missing side is 12, the perimeter is 36

• the missing side is 8, the perimeter is 36

• the missing side is 12, the perimeter is 12

What is the length of the missing side if the perimeter is 44m?

• 12m

• 22m

• 44m

• 2m

Tags

CCSS.3.MD.D.8

A triangular puzzle has a perimeter of 99 centimeters. Two of the sides are each 37 centimeters long. How long is the missing side?

• 136 cm

• 62 cm

• 25 cm

• 25 inches

Tags

CCSS.3.MD.D.8

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

Tags

CCSS.HSG.SRT.B.4

Find the height of the person using what you know about similar triangles.

• 4 ft

• 6.25 ft

• 1.25 ft

• 5.75 ft

Tags

CCSS.HSG.SRT.B.5

Find the missing side of the large triangle, then, find the PERIMETER of the large triangle.

• the missing side is 12, the perimeter is 24

• the missing side is 12, the perimeter is 36