Question

Help how do i solve for this ?

Answer 1

Solution:

Given,

Radius(r) = 11 ft

C = ?

Now,

`c = 2\pi \: r`

C = 2 × 3.14 × 11

= 70 cm

again,

C = 360°

angle = 315°

So,

C = 70 cm

or, 360° = 70 cm

or 1° = 70/360°

or 1° = 7/36

again ,

area = 7/36 × 315°

= 61.25 cm