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Anni [7]
3 years ago
11

work out the area of a circle with diameter 1.8cm. Take

t="\pi" align="absmiddle" class="latex-formula"> to be 3.142 and give your answer in 1 decimal place.
Mathematics
1 answer:
ankoles [38]3 years ago
8 0

Area of a circle is pi x r ^2

R = diameter/2

R = 1.8/2 = 0.9

Area = 3.142 x 0.9^2

Area = 2.5 square cm.

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Hat is the area of the shaded face of the cylinder is 22m give your answer to the nearest whole number and give the correct unit
noname [10]

The area of the shaded face of the cylinder is 1,520 mm².

<h3>How to find the area of the shaded area?</h3>

We can see that the shaded area of the cylinder is circular in shape.

This means that we can find the area of the shaded area by finding the area of the circle.

The radius of the circle is given as 22 mm.

The formula for finding the area of a circle is given as:

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= 1,519.76

≈ 1520 mm²

Therefore, we have found the area of the shaded face of the cylinder to be 1,520 mm².

Learn more about the area of a circle here: brainly.com/question/14068861

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Disclaimer: The question was incomplete, the complete question is attached below.

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