Answer :
Based on the calculations, the surface area (SA) of a cylinder is equal to: B. 2,813.44 in.²
How to calculate surface area of a cylinder?
Mathematically, the surface area (SA) of a cylinder can be calculated by using this formula:
SA = 2πrh + 2πr²
Where:
- h is the height.
- r is the radius.
The dimensions of this new cylinder would be equal to:
Radius = 8 × 2 = 16 in.
Height = 6 × 2 = 12 in.
Substituting the given parameters into the formula, we have;
SA = (2 × 3.14 × 16 × 12) + 2 × 3.14 × 16²
SA = 1,205.76 + 1,607.68
SA = 2,813.44 square inches.
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Complete Question:
If the dimensions of the following cylinder are doubled, what will be the surface area of the new cylinder? Radius: 8 in and Height: 6 in.
Group of answer choices.
A. 1,406.72 in.²
B. 2,813.44 in.²
C. 1,607.68 in.²
D. 5,626.88 in.²