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3 years ago

The circumference of a circle is 15pie centimeters. What is the area of the circle in terms

Mathematics

1 answer:

Sedaia [141]3 years ago

3 0

Answer:

176.71 cm

56.25π cm

Step-by-step explanation:

The formula for the circumference of a circle is:

C = πd

Where C is the circumference and d is the diameter

Let's substitute the circumference given into this formula:

C = πd

15π = πd

Now, we can solve this equation for d.

Divide by π on both sides:

15π = πd

/π /π

15 = d

Therefore, the diameter is 15 cm.

We need to find the area. The formula for the area of a circle is:

A = πr²

First, let's find the radius. The radius is half of the diameter, so divide the diameter by 2.

15/2 = 7.5

radius = 7.5 cm

Now, we can solve for the area.

Substitute into the formula for area:

A = πr²

A = π(7.5²)

A = π(56.25)

A ≈ 176.71

Therefore, the area is approximately 176.71 cm, or in terms of pi, 56.25π.

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Step-by-step explanation:

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If point D divide AC in the ratio 3:2

$(x_1,y_1)\rightarrow A(1,4)$

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