Question

Circle P has a circumference of approximately 75 inches.
What is the approximate length of the radius, r? Use 3.14
for 7. Round to the nearest inch.
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12 inches
24 inches
38 inches
46 inches
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Answer 1

Okay, we are going to solve this backwards!

First, we need to know that the formula for circumference is

c = π × d

d = diameter

π = 3.14

They told us what the circumference is, so let's plug it in

75 = (3.14) × (d)

let's solve for d

$\frac{75}{3.14} = d$

d = 23.88 inches

We must remeber that the radius is HALF of the diameter, so let's divide the diameter by 2

$\frac{23.88}{2} = 11.94$

Now, let's round to the nearest whole inch like they suggested

11.94 ≈ 12

The answer is 12 inches!

Answer 2

The answer would most likely be 12.the reason because when you do 75 divided by 3.14 =23.885,then 23.885 divided by 2 is 11.94,when rounded is 12 inches. You welcome,and have a nice day