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astra-53 [7]
3 years ago
5

The formula for the lateral surface area of a cylinder is S = 2trh , where r is the radius of the

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

\boxed{r=\frac{S}{2\pi h}}

<h2>Explanation:</h2>

Remember you have two write complete questions in order to get good and exact answers. Here I'll assume you want to isolate the radius (r). So:

The formula for the lateral surface area of a cylinder is:

S=2\pi rh \\ \\ \\ Where: \\ \\ S:Lateral \ surface \ area: \\ \\ r:Radius \\ \\ h:Height[tex][tex]Dividing \ both \ sides \ by \ 2\pi h: \\ \\ S=2\pi rh \\ \\ \frac{S}{2\pi h}=\frac{2\pi rh}{2\pi h} \\ \\ \\ Finally: \\ \\ \boxed{r=\frac{S}{2\pi h}}

<h2>Learn more:</h2>

Cylinder: brainly.com/question/12248187

#LearnWithBrainly

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Answer:

The value of x is 50

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Step-by-step explanation:

Let us solve the question

∵ The sum of the measures of the angles of a triangle is 180°

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→ Add them and equate the sum by 180

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→ Add the like terms

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→ Add 20 to both sides

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→ Divide both sides by 4 to find x

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To find the measures of the 3 angles substitute x by 50 in their expressions

∵ The measure of one angle is x

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∵ The measure of the 2nd angle is 2x

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∵ The measure of the 3rd angle is (x - 20)

∴ The measure of the 3rd angle = (50 - 20)

∴ The measure of the 3rd angle is 30°

∴ The measures of the 3 angles are 50°, 100°, 30°

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