A coin has a diameter of about 30 millimeters. What is the area of the coin

Mathematics

2 answers:

SOVA2 [1]3 years ago

7 0

Hi the answer is706.5mm

True [87]3 years ago

7 0

The diameter / by 2 is the radius and you can find the area by using the equation pi times the radius squared. I was thought to remember the phrase "Pies are square" if that helps at all.

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3 years ago

(23 + ) + 19 = 23 + ( + 19)

Tpy6a [65]

I think it should be 42

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Step-by-step explanation:

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Step-by-step explanation:

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$\therefore m\angle AOB + m\angle BOC = 180° \\ \therefore \: 3x + 124 \degree + 6x + 29 \degree = 180° \\ \therefore \: 9x + 153 \degree = 180° \\ \therefore \: 9x = 180° - 153 \degree \\ \therefore \: 9x = 27 \degree \\ \therefore \:x = \frac{27 \degree }{9} \\ \huge \pink{ \boxed{\therefore \:x =3 \degree }} \\ \\ \because \: m\angle BOC =6x + 29 \degree \\ \therefore \: m\angle BOC =6 \times3 \degree + 29 \degree \\ \therefore \: m\angle BOC = 18\degree + 29 \degree \\ \\ \huge \red{ \boxed{\therefore \: m\angle BOC = 47 \degree }}$

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Answer:

Step-by-step explanation:

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3 years ago