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Fantom [35]
3 years ago
12

A circle has an area of 324╥ cm². What is the radius?

Mathematics
2 answers:
Igoryamba3 years ago
8 0
The area of a circle has the formula A = pi * r^2. Since the area is known, we could determine the radius of the circle.

A = pi*r^2
324*pi = pi*r^2
324 = r^2
r = square root (324)
r = 18

The answer is 18 cm.
Stolb23 [73]3 years ago
3 0
<span>I got 18 x 18 = 324.</span>
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Explain how you can use a 10 by 10 grid to model 42%
tia_tia [17]

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Against the wind a small plane flew 715 miles in 2 hours and 10 minutes. The return trip took only 1 hour and 50 minutes. What w
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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Oksanka [162]

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Step-by-step explanation:

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Substitute in formula (1) the value t=2 c:

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5 0
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Genrish500 [490]

Answer:

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Step-by-step explanation:

we know that

The simple interest formula is equal to

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where

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substitute in the formula above

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I=\$172.67

3 0
3 years ago
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