Question

Find each interior angles of the following regular polygons :-
1. equilateral triangle
2. square
3. regular polygon
4. regular hexagon
5. regular heptagon
6. regular octagon
7. regular nonagon
8. regular decagon

Answer 1

Answer:

Step-by-step explanation:

A=(2n-4)*90/n

1 n=3,A=(6-4)*90/3=2/3*90=60

2.n=4,A=(8-4)*90/4=4/4*90=90

3.A=(2n-4)*90/n

4.n=6,A=(12-4)*90/6=8/6*90=120

5.n=7,A=(14-4)*90/7=900/7=128.5

6.n=8,A=(16-4)*90/8=12/8*90=135

7.n=9,A=(18-4)*90/9=140

8.n=10,A=(20-4)*90/10=16*9=144