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3 years ago

My circumference is 20 cm what is my diameter and radius?

Mathematics

1 answer:

Musya8 [376]3 years ago

7 0

Answer:

The diameter of the circle would be: 6.4 cm. rounded or 6.36619772 cm.

The radius of the circle would be: 3.2 cm. rounded or 3.18309886 cm.

Step-by-step explanation:

<h3>The diameter can be solved using: D = $\frac{C}{\pi }$ </h3>

So, the first step would be : D = $\frac{20}{\pi }$

Then : D = 20 ÷ $\pi$

Finally, the answer will be : 6.36619772 cm. or 6.4 cm.

<h3>The Radius can be Solved using: r = $\frac{c}{2\pi }$ </h3>

The first step would be : r = $\frac{20}{2\pi }$

Then : 20 ÷ 6.2831853071796 (2 $\pi$ )

Finally, the answer will be : 3.18309886 cm. or 3.2 cm.

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3 years ago

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Answer:

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Step-by-step explanation:

Let's use the variable x to represent the width:

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2x - 5 = length

To find the area of a rectangle, you multiply the width and length, so we are going to write an equation where we multiply the width and length and set it equal to 33 ft^2, which is the area:

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Now use basic algebra to solve for x:

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