3 years ago

Name the side included by ∠A and ∠B

Mathematics

1 answer:

Natasha2012 [34]3 years ago

4 0

Answer:

I think may be it is Option 2 (AB)

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The height of a right circular cylinder is 1.5 times the radius of the base. What is the ratio of the total surface area to the

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Let r represent the radius of cylinder.

We have been given that the height of a right circular cylinder is 1.5 times the radius of the base. So the height of the cylinder would be $1.5r$ .

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$LSA=2\pi r h$ , where,

LSA = Lateral surface area of pyramid,

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h = height.

Upon substituting our given values in above formula, we will get:

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Now we will find the total surface area of cylinder.

$TSA=2\pi r(r+h)$

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$\frac{TSA}{LSA}=\frac{2.5r}{1.5r}$

$\frac{TSA}{LSA}=\frac{25}{15}$

$\frac{TSA}{LSA}=\frac{5}{3}$

Therefore, the ratio of total surface area to lateral surface area is $5:3$ .

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