The volume of a cylinder is 980pi in3. The radius is 7 in. What is its height?
2 answers:
Answer:
D) 20 in
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
Substituting what we know
980 pi = pi (7)^2 h
Divide each side by pi
980 pi /pi= pi 49 h/pi
980 = 49h
Divide each side by 49
980/49 = 49h/49
20 =h
Answer:
h ≈ 20 inches
Step-by-step explanation:
Given volume 980 pi inches cubed and radius 7 inches.
Using the height formula for right cylinder
h = V/π r^2
h = 3078.78/π7^2
h ≈ 20 inches
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