Question

Find the angle in degree subtended at
the centre of a circle by an arc whose
length is 15 cm, if the radius of the
circle is 25 cm​

Answer 1

Answer:

arc length I=15, radius =25cm, angle = x

I=(x/360) x2πr=(x/360) X2x22/ 7x25

= 15

x = 34.36 degree

Answer 2

Answer:

34.36 °

Step-by-step explanation:

Find the angle in degree subtended at

the centre of a circle by an arc whose

length is 15 cm, if the radius of the

circle is 25 cm​

Radius = 25 cm

Circumference of circle = 2πR  = 2π * 25 = 50π cm

Arc Length = 15 cm

Angle subtended by Arc  = (15/50π)  * 360

= 108/π

using π = 22/7

= 108 /( 22/7)

= 756/22

= 378/11

= 34.36 °