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coldgirl [10]
3 years ago
10

What is the surface area of a cylinder with base radius of 3 and height 8?

Mathematics
2 answers:
ehidna [41]3 years ago
7 0

Answer:

it is 72pi proven in khan academy XD

Step-by-step explanation:

Darina [25.2K]3 years ago
5 0

Answer:

66π

Step-by-step explanation:

SA= 2πrh+2πr²

SA= 2π x 3 x8 + 2π x 3x3

= 48π + 18π

=66π

hope this helps!

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Two rectangular prisms each have a surface area of 600 square inches. What are the possible dimensions of the prism?
liraira [26]
The area of a rectangular prism is 200 so I divided 600 by 3 and so the possible dimensions are 200 by 200 by 200.
7 0
3 years ago
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Find the area of the following figure and write your result in the empty box.<br> ​<br> ​
Sunny_sXe [5.5K]

Answer:

Area = 406

Step-by-step explanation:

First things first: Divide the shape

Here is how I did it:

21 x 16

14 x 5

Now solve:

21 x 16 = 336

14 x 5 = 70

Now add:

336 + 70 = 406

So the area is 406

5 0
2 years ago
Find the area of the figure. Round to the nearest hundredth when necessary.
Delvig [45]

Answer:

215.20 ft^2

Step-by-step explanation:

The figure has 2 semi-circles.

First we find the area of each circle using the formula \pi r^{2} because that is the area formula for a circle.

The semi-circle to the left gives the diameter which is 22 feet. The radius would be half the diameter thus r=11 for semi-circle one.

Then we are to find the diameter of the second semi-circle. Given the entire length to be 30 feet, 30-22 leaves us with 8 feet as its diameter thus r=4.

Left: r=11

Right: r=4

Then, plugging both into the formula for area of a circle, we get

Left: 380.1327

Right: 50.26548

We must divide each by two because we are only looking for semi-circle which is exactly half the area of a full circle.

Then,

Left: 190.066

Right: 25.1327

190.066+ 25.1327= 215.199 = 215.2ft^2

8 0
3 years ago
Mr. Addis drove 136 miles on 8 gallons if gas. What is the unit rate?
barxatty [35]

Answer:

17 i think

Step-by-step explanation:

6 0
2 years ago
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What value is equivalent to 4 + 3(10 − 2 3)? 3 means the third power.
katrin [286]

Answer: 10

Step-by-step explanation:

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4+ 3x (10 - 8)

4+ 3x 2

4 +6 = 10

5 0
3 years ago
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