Question

Can someone please help me​

Answer 1

`\theta =135`

Explanation:

Required

Interior of a regular octagon

This is calculated using:

`\theta =(180(n-2))/(n)`

Where

`n = 8`

So:

`\theta =(180(8-2))/(8)`

`\theta =(180*6)/(8)`

`\theta =135`