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olya-2409 [2.1K]

3 years ago

9

How to find perimeter of semicircle

1 answer:

Arlecino [84]3 years ago

5 0

Answer:

1/2 π × d + d where d is the diagonal

Step-by-step explanation:

The perimeter of a circle is π × d where d is the diameter so half of that is 1/2 π × d. But If you are going to walk around a semicircle you need to go half way around the circle and then across a diagonal to get back to where you started so the perimeter is 1/2 π × d + d.

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Answer:

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Step-by-step explanation:

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3 years ago

The mean of three number is 15. if 2 of the numbers are 18 and 16 what is the third number

MrMuchimi

Answer:

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Step-by-step explanation:

The mean is calculated as

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3 years ago

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schepotkina [342]

Answer:

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Step-by-step explanation:

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