Question

pls help me with this question..... ​

Answer 1

Answer:

86.625

Step-by-step explanation:

First the area of semi circle = (21/2)^2π*1/2 = 55.125 π

Area of smaller circle = (5.25)^2*π = 27.5625 π

Required area = 55.125 π - 27.5625 π = 27.5625 π = 86.625

Answer 2

Answer:

346.5-86.625

259.875