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3 years ago

11

The diameter of a circle is 14 ft. Find its area to the nearest tenth.

2 answers:

Hunter-Best [27]3 years ago

4 0

Answer:

The answer is <em>153.9</em>

Step-by-step explanation:

To get the answer we will first <em>divide 14 by 2</em> because we are trying to find the area. 14 ÷ 2 = <em>7.</em> Now multiply<em> 7 x 7 x π</em>, which equals<em> 154.9</em> rounded to the nearest tenth.

Leokris [45]3 years ago

3 0

Answer:

153.9 ft.²

Step-by-step explanation:

$A=\pi r^2$ where r is the radius of the circle

The radius is equal to half the diameter, so to find r, divide 14 ft. by 2:

14÷2=7

Plug 7 into the equation as r

$A=\pi (7)^2\\A=\pi (49)\\A=153.9$

Therefore, the area of the circle is 153.9 ft.² when rounded to the nearest tenth.

I hope this helps!

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Lunna [17]

Answer:

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Step-by-step explanation:

step 1

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we know that

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<u>Area of triangle ABD</u>

Observing the graph

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substitute

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step 2

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we know that

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we have

$A(-5,1),B(-8,5),C(-5,9),D(-2,5)$

the formula to calculate the distance between two points is equal to

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Find the distance CD

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Find the distance AD

$d=\sqrt{(5-1)^{2}+(-2+5)^{2}}=5\ units$

substitute the values

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melomori [17]

Answer:

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3 years ago