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3 years ago

Find the surface area of the cylinder leave your answer in terms of pie

Mathematics

1 answer:

Sonbull [250]3 years ago

5 0

Answer:

54π cm²

Step-by-step explanation:

It's pi, or π, but definitely not "pie."

The surface area has two parts: the vertical side and the two ends.

The formula for the area of the vertical sides is A = πr²h, where r is the radius and h is the height. Here, we have:

A = π(3 cm)²(5 cm) = 45π cm²

Each of the ends has the following area: A = πr², or A = 9π cm²

Thus, the total surface area of the cylinder is 45π cm² + 9π cm², or 54π cm²

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Sandra tiles 5/4 square yards in 1/3 hour

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Sandra lays 3.75 tiles in one hour

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3 years ago

Jane made a poster that had a length: 1 2/3 of feet and a width: 5/6 of feet. What is the perimeter of her poster?

slamgirl [31]

Answer:

P = 6 2/3 ft

Step-by-step explanation:

The formula for the perimeter of a rectangle of length L and width W is

P = 2(L + W).

Here the perimeter is P = 2(1 2/3 + 5/6) = 2(5/2 + 5/6)

= 2(15/6 + 5/6) = 2(20/6)

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2 years ago

MrMuchimi

Answer:

Step-by-step explanation:

Got it right on test

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2 years ago

Read 2 more answers

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VARVARA [1.3K]

Answer:

A) 40000

Step-by-step explanation:

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2 years ago

During an Apollo moon landing, reflecting panels were placed on the moon. This allowed Earth-based astronomers to shoot laser be

rusak2 [61]

Answer:

The distance between the astronomers and the moon was $7.56*10^{8]$ meters.

Step-by-step explanation:

We have that the speed is the distance divided by the time, so:

$v = \frac{d}{t}$

In this problem, we have that:

The reflected laser beam was observed by the astronomers 2.52 s after the laser pulse was sent. This means that $t = 2.52$ .

If the speed of light is 3.00 times 10^8 m/s, what was the distance between the astronomers and the moon?

We have that $v = 3*10^{8}$ m/s.

We have to find d. So:

$v = \frac{d}{t}$

$d = vt$

$d = 3*10^{8}*2.52$

$7.56*10^{8]$

The distance between the astronomers and the moon was $7.56*10^{8]$ meters.

7 0

3 years ago