Question

The base of the right triangle drawn in the regular octagon measures 0.7 cm.

What is the perimeter of the octagon?

Answer 1

just took the test, its 11.2

Answer 2

we know that

the perimeter of the regular octagon is equal to

`P=8b`

where

b is the length side of the regular octagon

In the right triangle of the figure

`(b)/(2)=0.7`

Solve for b

`b=2*0.7=1.4\ cm`

substitute the value of b in the formula

`P=8b=8*1.4=11.2\ cm`

therefore

the answer is

the perimeter of the octagon is
`11.2\ cm`