(a)
To find the surface area.
(a)
Answer to Problem 21E
Explanation of Solution
Given Information: Cylinder
Formula Used:
Surface Area of Cylinder =
Calculation:
Radius = h, Height = h and
Surface Area of Cylinder =
Put the value of Radius and Height to find Surface Area of Solid
Surface Area of Cylinder =
So,
Surface Area of Cylinder =
Hence,
Surface Area of Solid =
(b)
To find the radius and height.
(b)
Answer to Problem 21E
Height = 4 units and Radius = 4 units
Explanation of Solution
Given Information: Surface Area of Cylinder =
Cylinder
Formula Used:
Surface Area of Cylinder = Compare both Surface Area
Calculation:
Radius = h, Height = h.
Already Solve,
Surface Area of Cylinder=
Now compare both Surface Area,
As,
Radius = Height
So,
Radius = 4 unit
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Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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