Perimeter

The triangles are similar and the perimeter of SRT = 15. What is the perimeter of WZX??

• 12

• 12.5

• 13

• 15

Find the perimeter of the large triangle.

• 24
• 36
• 12
• 54

Find missing side. Find the perimeter of the smaller triangle.

• 5m, 21m

• 7m, 63m

• 5m, 63m

• 7m , 21m

Find the ratios (red to blue) of the perimeter and the area.

• Perimeter : 4/7
  Area: 16/49
• Perimeter: 15/8
  Area: 30/16
• Perimeter: 40/4
  Area: 19/15
• Perimeter: 18/40
  Area: 15/30

The two gazebos shown are similar pentagons. Find the perimeter of Gazebo A. Write answer like P = # m

The two figures are similar. Find the ratios (red to blue) of the perimeters and of the areas. 

• Perimeter: 11/6
  Area: 36/121
• Perimeter: 11/6
  Area: 121/36
• Perimeter: 4/11
  Area: 144/25
• Perimeter: 4/11
  Area: 64/16

Find the ratio (red to blue) of the perimeter.

• 11 : 6

• 6 : 11

• 121 : 36

• 36/121

Find the ratio (blue to red) of the perimeter.

• 64/25
• 25/64
• 5/8
• 8/5

ΔABC is similar to ΔDEF. The ratio of the length of AB to the length of DE is 3:1. Which ratio is also equal to 3:1?

• m<A: m<D

• m<B:m<F

• area ΔABC: area ΔDEF

• perimeter ΔABC:perimeter ΔDEF

Problem #7

The two figures are similar. Find the ratios (red to blue) of the perimeters and of the areas. (Select all that apply.)