Question

An arc of a circle is of length 7pie cm and the sector it bounds has an area of 28pie cm^2 . Find the radius of the circle.

Answer 1

hope it helps
u can clarify if you face any doubt

sorry i forgot to multiply answer is 8cm

Answer 2

Answer:

        Radius = 8cm

Step-by-step explanation:

We know,

      1/2 x arc length x radius = area of a circle

solution,

1/2 x 7π x R = 28π

R = 28π x 2/7π

R = 28 x 2/7

R = 4 x 2

R = 8cm