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The diameter of the semicircle with center O shown below, is 4 units. What is the area of the shaded region?

Mar 15, 2021

#1
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if the diameter of the semicircle is 4 units, then the radius would be 4 / 2 = 2 units.

the shaded area is a right triangle with its two legs being the radius of the semicircle, so the area of that would be:

$$\frac{2*2}2$$ = $$\frac42$$ = $$2$$

hope this helped! please let me know if you are still confused :)

Mar 15, 2021
#2
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Thank you so much!

Guest Mar 15, 2021