Find the area of the enclosed region, PXROY correct to th...
Find the area of the enclosed region, PXROY correct to the nearest whole number
A.
96cm2
B.
116cm2
C.
154cm2
D.
192cm2
E.
385cm2
Correct answer is A
Area of the bigger semi circle P x RO =
πr22
= 227
x 492
= 77cm22nd Area of the smaller circle DYO =
227
x 3.522
= 19.25Total Area = 77 + 19.25 = 96.25 = 96.00
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