Question

in a circle of radius 21 cm an arc subtends an angle of 270 degrees at the centre find the length of the arc??

Plz answer fast...​

Answer 1

Answer:

GIVEN:-

Radius(r) = 21cm

Angle(θ) = 270°

TO FIND:-

Length of an arc.

SOLUTION:-

Length of on arc = θ/360(2πr)

= 270/360(2*22/7*21)

= 9*11

= 99 cm

Therefore, the length of an arc is 99cm.

Answer 2

Answer:

99 cm is the right answer.

Step-by-step explanation:

=270°/360°×(2πr)

=270°/360°×2(22/7)21

by solving above numerical

=99cm