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]3 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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