Question

if an angular measure of an Arc is 36 degree and its length is 10 centimetre then what is the circumference of the circle?
Options:
A) 100cm
B) 36cm
C)360cm
D)10cm​

Answer 1

Answer:

Ans :- 100 cm

Step-by-step explanation:

we have

Central angle,theta = 36°

Length of arc= 10cm

Let the radius of the circle be r

Then, we know that

2pi r theta / 360 = 10 cm

On solving this,

we get r = 50 upon pi

Now circumference of circle is 2 pi r

putting r = 50 upon pi in it

Therefore,

circumference = 100 cm

Hope it helps