Question

The perimeter of the figure below is 60.7 ft. Find the length of the missing side. 7.2 ft 4.1 ft 4.1 ft 4.1 ft 4.1 ft 12.8 ft ? 1.9 ft 1.9 ft 7.2 ft (Note: diagram is NOT to scale)

Answer 1

we know that

The perimeter of the figure is equal to the sum of its length sides

so

P=7.2(2)+4.1(2)+4.1(2)+12.8+1.9(2)+x

Combine like terms

P=47.4+x

Remember that

P=60.7 ft

substitute

60.7=47.4+x

x=60.7-47.4

x=13.3 ft

therefore

the answer is

13.3 ft