if area of sector of a circle is 105 cm2 and length of its arc is 30 cm, calculate the - Maths - Areas Related to Circles

Question

if area of sector of a circle is 105 cm2 and length
of its arc is 30 cm, calculate the radius of the circle

Rahul Mishra · Answer

A piece of cake
pi x r2 x 
Ñ²
/ 3600 = 105 -------- (i) and,
2 x pi x r x Ñ² / 3600 = 30 ------
(ii)
On dividing equation (i) from (ii) we get,
r/2 = 105/30
=> r = 7 cm Ans

if area of sector of a circle is 105 cm2 and length of its arc is 30 cm, calculate the radius of the circle.

if area of sector of a circle is 105 cm² and length of its arc is 30 cm, calculate the radius of the circle.