A semi circle has a radius 8.2 cm Work out the area of this semi circle Take pi to be 3.142 and give your answer to 1 decimal place

asked Feb 27, 2021 1.2k views

2 votes

A semi circle has a radius 8.2 cm

Work out the area of this semi circle
Take pi to be 3.142 and give your answer to 1 decimal place

by CPJ

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3 votes

Try using the app photo math or something like that it helps me a lot

Jcwenger answered Feb 28, 2021

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4 votes

Answer:

Explanation:

$Area=(1)/(2)*\pi *r^(2)\\\\=(1)/(2)*3.14*8.2*8.2\\\\=3.14*4.1*8.2\\$

= 105.57

= 105.6 cm²

EngineSense answered Mar 3, 2021

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