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2 years ago

Help, Please! There is a Simicircle with a diameter of 36mm, what is the area? Use 3.14 for pi

Mathematics

1 answer:

kondaur [170]2 years ago

4 0

Answer:

28.258mm

Step-by-step explanation:

A semi circle is half of a circle, so we will divide it by 2 after finding the area.

Formula for finding semi circle = pi x radius ÷ 2

Formula for radius = diameter ÷ 2

Radius = 36 ÷ 2 = 18mm

Semi circle = 3.14 or 22/7 x 18 = 56.57

56.57 ÷ 2 = 28.285

Note: I don't have a calculator with me right now, so you might want to consider typing out pi x 18 ÷ 2 on a calculator since my answer might be wrong because the answer has endless decimals.

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2 years ago

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san4es73 [151]

Answer:

Step-by-step explanation:

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C.P= $\frac{S.P\times 100}{100-loss(in\;percent)}$

By using the formula

C.P of one radio= $\frac{2288\times 100}{110}=$ $2080

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3 years ago

Factor completely<br> x^2 - 3x - 28

lbvjy [14]

Answer:

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Step-by-step explanation:

x^2 - 3x - 28

What two numbers multiply to -28 and add to -3

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(x-7) (x+4)

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2 years ago

Read 2 more answers