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25 votes
25 votes
Find the area of the figure. Round to the nearest square inch. (Units are in inches)

User Hunter Zhao
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1 Answer

16 votes
16 votes

we have that

the area of the figure is equal to the area of a right triangle plus the area of a semicircle

so


A=(1)/(2)\cdot b\cdot h+(1)/(2)\cdot\pi\cdot r^2

where

Applying Pythagorean Theorem

Find out the base of the triangle

5^2=4^2+b^2

b^2=25-16

b^2=9

b=3 in

h=4 in

r=2 in

substitute given values


A=(1)/(2)\cdot3\cdot4+(1)/(2)\cdot\pi\cdot2^2

A=12 in2

The area is 12 square inches

User Igor Alemasow
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2.5k points