Question

Q-1 In a regular polygon, each interior angle is twice the exterior angle. The number of sides of the polygon is Options- 6,5,4,7 (Hint: Let ext. < = x. Then int. = 2x = x + 2x = 180° > x = 60° 360° Number of sides = = 6] 60° 11. Q-3 The measure of each interior angle of a regular decagon is b. Options -144. c. 100° d. 90° a. 136​

Answer 1

Answer:

Hii,

Step-by-step explanation:

Let there be n sides, then sum of interior angles=(n−2)180

Each interior angle will be =

n

n−2

(180)

Each exterior angle will be =(2)( n n−2 )×180

Thus,

n

n−2

(180) + (2) ( nn−2 )×180 = 180n

n−2

(3)=1

3n−6=n

n=3

Hope this helps you..