Question

answer this..........​

Answer 1

R=7.4

Perimeter of the shaded region=3πr/2=47 (given)

R=47*7/2*22

r=7.477cm

Please mark it as brainliest!!

Answer 2

See the attachment.

Perimeter of shaded region = R + R + [ (3/4) × 2πR ]

= 2R + (6/4) πR

= 2R + 1.5π R

= R( 2 + 1.5π)

= (2 + 1.5π) R

= (2 + 1.5 × 22/7 ) R

= (2 + 33/7 ) R

= {(14 + 33)/7 }R

= 47/7 R

Given that 47/7 R = 47

=> R = 47 × 7/47

=> R = 7cm