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5) Here is a church door. The arch at the top is a semicircle. Calculate the area of the door.
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5 Here Is A Church Door The Arch At The Top Is A Semicircle Calculate The Area Of The Door class=

Sagot :

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Step-by-step explanation:

area of the rectangle : L×B = 2.1×1.2 = 2.52m².

diameter = 1.2 m, radius = 1.2/2 =0.6m

area of the semi-circle : πr²/2 = 22/7×0.6×0.6/2 = (22×0.6×0.6)/(7×2) = 7.92/14 = 0.565m².

Therefore, total area of the door : (0.565+2.52)m² = 3.085m².

hope this helps you .

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