Answer :
radius = 15
side = 6.215
a^2 = 15^2 - 6.215^2
a = 13.65
Area = a × p
Area = 13.65 × 99.44
Area = 1357.356
side = 6.215
a^2 = 15^2 - 6.215^2
a = 13.65
Area = a × p
Area = 13.65 × 99.44
Area = 1357.356