Given:
The height of the cylinder = 12 in
The diameter of the base of the cylinder = 8 in.
To find:
The volume of the cylinder.
Solution:
The diameter of the base of the cylinder is 8 in. The radius is half of its diameter. So,
![r=\dfrac{8}{2}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7B8%7D%7B2%7D)
![r=4](https://tex.z-dn.net/?f=r%3D4)
So, the radius of the base of the cylinder is 4 in.
The height of the cylinder, h = 12 in.
Base area of the cylinder is:
![B=\pi r^2](https://tex.z-dn.net/?f=B%3D%5Cpi%20r%5E2)
Where, B is the base area and r is the radius.
![B=\pi (4)^2](https://tex.z-dn.net/?f=B%3D%5Cpi%20%284%29%5E2)
![B=16\pi](https://tex.z-dn.net/?f=B%3D16%5Cpi%20)
So, the base area is
square inches.
The volume of the cylinder is:
![V=\pi r^2h](https://tex.z-dn.net/?f=V%3D%5Cpi%20r%5E2h)
![V=Bh](https://tex.z-dn.net/?f=V%3DBh)
Where, r is radius, h is height, B is base area.
Putting
and
, we get
![V=(16\pi )12](https://tex.z-dn.net/?f=V%3D%2816%5Cpi%20%2912)
![V=192\pi](https://tex.z-dn.net/?f=V%3D192%5Cpi%20)
So, the volume is
cubic inches.
Therefore,
.
5f+11g+15h
Explanation:
2f+5g+7h+3f+6g+8h
You just combine the like terms
5f+11g+15h
.
<u>Find Radius:</u>
Radius = Diameter ÷ 2
Radius = 4 ÷ 2 = <u>2 in</u>
.
<u>Find Surface Area:</u>
Surface Area = 2πr² + 2πrh
Surface Area = 2π(2)² + 2π(2)(3)
Surface Area = 8π + 12π
Surface Area = 2<u>0π in²</u>
.
Answer: 20π in²
.
Well this is very simple lol 40-10
4.5 is the answer because
first I took out the decimal which the new number is now 13
13÷3=4R1( I divided it by 3 because 1 yard=3 feet)
now the reminder is 1.5 which equals 18inches and 1 yard equals 36 inches
and now since 18 is 1/2 of 36
1/2 in decimal form is 0.5 or.5
so now the answer is 4.5