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3 years ago

Find the area and circumference of a circle with a diameter of 30 ft

Mathematics

1 answer:

Kazeer [188]3 years ago

7 0

Answer:

$\large\boxed{C=30\pi\ ft,\ A=225\pi\ ft^2}$

Step-by-step explanation:

The formula of a circumference of a circle:

$C=d\pi$

d - diameter

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the diameter d = 30 ft. We know d= 2r.

Therefore r = 30 : 2 = 15 ft.

Substitute:

$C=30\pi\ ft\\\\A=\pi(15^2)=225\pi\ ft^2$

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2 years ago

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3 years ago

Read 2 more answers

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4 years ago

Two ride-sharing companies are competing for business in a large city. To help customers compare the companies, a data scientist

Solnce55 [7]

Solution :

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3 years ago

On the blue prints for a house, 2 inches represents 3 feet. If the width of a room on

lisabon 2012 [21]

Answer:

The actual width would be 9.75 feet. (I think).

Step-by-step explanation:

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2 years ago

Find the area and circumference of a circle with a diameter of 30 ft​

Find the area and circumference of a circle with a diameter of 30 ft