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2 years ago

A circle has a diameter of 36 cm. Which expression could represent the area of this circle in square cm?

Mathematics

2 answers:

goldenfox [79]2 years ago

8 0

Answer:

Step-by-step explanation:

You haven't given the choices but I believe the equation below could represent the area of the circle:

(pi ~ 3.14) * (18)^2

The area for a circle is pi * radius squared, so to find the radius divide the diameter by 2.

garik1379 [7]2 years ago

4 0

3.14(18^2) basically do that

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Answer:

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Step-by-step explanation:

The first first thing we must do is find the LCM of the following numbers

(51; 68) = 204.

This means that the first time they coincide is at 204.

Now, since his steps always coincide after 204

In Nick's case

Nick's 204 ÷ 51 = 4th step

and in the case of the father

204 ÷ 68 of his father = 3rd step.

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Step-by-step explanation:

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Answer:

Step-by-step explanation

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Leviafan [203]

Answer:

$\boxed {\boxed {\sf C. \ 4 \ inches}}$

Step-by-step explanation:

Circumference is the perimeter of a circle. It can be found using the formula:

$c= \pi d$

However, we are given the radius.

The radius measures from the center to the edge of the circle.
The diameter measures from edge to edge through the center.
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The formula can be rewritten as:

$c= \pi 2 r$

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$25.12 \ in = \pi 2r$

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$25.12 \ in = (3.14) 2r$

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Divide both sides by 3.14 because the inverse of multiplication is division.

$25.12 \ in / 3.14= (3.14 ) 2r / 3.14$

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Divide both sides by 2.

$8 \ in / 2 = 2r/2$

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