A circular mat has a diameter of 8 cm. calculate the area of the mat. (use II as 3.14)

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Asked 10/24/2010 8:04:46 PM

Updated 7/30/2020 2:26:38 AM

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marie2061

A = pi * r^2
r = d/2 = 8/2 = 4 cm
A = 3.14 * 4^2
A = 3.14 * 16
A = 50.24 cm^2

Added 7/30/2020 2:26:38 AM

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Updated 7/18/2023 12:44:42 PM

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Rhed°88

A change purse contains five coins, two 25 cents pieces and three 10 cents pieces. A coin is chosen at random from the purse. The probability of choosing a 10 cent piece is 30%.

Added 6/15/2023 12:10:35 AM

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Flagged by Menskie [7/18/2023 12:44:51 PM], Unflagged by Menskie [7/18/2023 12:45:03 PM]

Menskie

Number of 10 cent pieces = 3
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Probability = Number of 10 cent pieces / Total number of coins
Probability = 3 / 5
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So, the probability of choosing a 10 cent piece is 60%.

Added 7/18/2023 12:44:42 PM

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