Question

2. The diagram shows a regular decagon.
a) Calculate the angle a step by step​

Answer 1

Answer:

A decagon is having 10 angles

so let the angles be y

it means

y+y+y+y+y+y+y+y+y+y = 360 degree

10y = 360

y = 360

10

y = 36 degree

hope it's helpful