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elena-s [515]
3 years ago
10

Need help please please

Mathematics
2 answers:
Leona [35]3 years ago
5 0

Answer:

176.7 in^{2}

Step-by-step explanation:

The area of a circle is defined as:

A = \pi r^{2}

Where r is the radius and A is the area. We're given the diameter, 15 inches. The radius is half of the diameter, so the radius is therefore 7.5 inches. Now let's take this value back into the formula above:

A = \pi r^{2} =\pi (7.5)^{2} = 56.25\pi = 176.7 in^{2}

So the circle has an area of 176.7 in^{2}

Hope this helps!

alina1380 [7]3 years ago
3 0

Answer:

D or 176.71 inches squared.

Step-by-step explanation:

the radius is 7.5. put it in a calculator and you get D.

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Since Shaan walks 2.5 meters per second, while his brother Dhvan walks 1 meter per second, and Dhvan wants to have a race, and Shaan knows that he walks faster, but he wants to give his brother a head start of 45 meters, so it doesn't seem that he is allowing him to win, to determine how many meters long should the race be in order for Dhvan to win the following calculation must be performed:

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