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In the bullseye shown. AB = BC = CD = DE, and AE = 14. Find the difference in the areas of the blue and red rings. Round to the nearest square inch.

A) 22 in
B) 38 in
C) 77 in
D) 308 in

In the bullseye shown AB BC CD DE and AE 14 Find the difference in the areas of the blue and red rings Round to the nearest square inch A 22 in B 38 in C 77 in class=

Respuesta :

AB = 14/4 = 3.5

Y = area of yellow
R = area of red
B = area of blue

R = full area of red - Y
B = full area of blue - (Y + R)

Y = pi(3.5^2) = 38.465
R = pi(7^2) - Y = 153.86 - 38.465 = 115.395
B = pi(10.5^2) - 153.86 = 346.185 - 153.86 = 192.325

192.325 - 115.395 = 76.93 = 77 sq inches rounded

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