davidodonnell2ov55ob
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A) Find the volume of the cylinder pictured below. Use 3.14 for pi. Give your answer to the nearest tenth. Show your work to receive full credit.

Volume=


3. Find the volume of the sphere pictured below. The sphere has a radius of 20 cm. Use 3.14 for pi. Give your answer to the nearest tenth. Show your work to receive full credit.

3. Find the volume of the sphere pictured below. The sphere has a radius of 20 cm. Use 3.14 for pi. Give your answer to the nearest tenth. Show your work to rec class=
3. Find the volume of the sphere pictured below. The sphere has a radius of 20 cm. Use 3.14 for pi. Give your answer to the nearest tenth. Show your work to rec class=

Answer :

a. first the find the are of the top side. to get the area of a circle you do radius squared times pi. The radius is half the diameter so 5 squared times ok equals 78.5
Then times that by the length, 21 times 78.5 equals 1648.5

b. first square the radius to get 400, then times that by 4 to get 1600. after that multiply that by ok to get 5026.5
JeanaShupp

Answer: A. [tex]1648.5\ ft.^3[/tex]

3. [tex]33,493.3\ cm^3[/tex]

Step-by-step explanation:

A. Given: Height of cylinder = 21 ft.

Diameter=10 ft

then Radius = [tex]\dfrac{10}{2}=5\ ft.[/tex]

The volume of cylinder is given by :-

[tex]\text{Volume}=\pi r^2 h\\\\\Rightarrow\ \text{Volume}(3.14) (5)^2(21)\\\\\Rightarrow\ \text{Volume}=1648.5\ ft.^3[/tex]

3. We know that the volume of a sphere is given by :-

[tex]\text{Volume}=\dfrac{4}{3}\pi r^3[/tex], where r is the radius of the sphere.

Given : The radius of the sphere =20 cm

Now, the volume of the sphere will be :-

[tex]\text{Volume}=\dfrac{4}{3}(3.14) (20)^3\\\\\Rightarrow\ \text{Volume}=33,493.333\approx33,493.3\ cm^3[/tex]

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