Question Number 149720 by cherokeesay last updated on 06/Aug/21

Answered by mr W last updated on 06/Aug/21

(R−1)^2 +(R−2)^2 =R^2 R^2 −6R+5=0 (R−5)(R−1)=0 ⇒R=5, 1 (rejected) area of semicircle=((πR^2 )/2)=((25π)/2)

Commented bymr W last updated on 06/Aug/21

thanks!