Answer:
a = 8
Step-by-step explanation:
a ÷ 2 - 8 + 8 = - 4 + 8
a ÷ 2 = 4
a ÷ 2 × 2 = 4 × 2
a = 8
Answer: the total surface area of the cylinder is 18π cm²
Step-by-step explanation:
The formula for determining the total surface area of a cylinder is expressed as
Total surface area = 2πr² + 2πrh
Where
r represents the radius of the cylinder.
h represents the height of the cylinder.
π is a constant whose value is 3.14
From the information given,
radius = 2 cm
Height = 5 cm
Therefore,
Area = (2 × π × 2²) + (2 × π × 5)
Area = 8π + 10π
Area = 18π
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Answer:
answer is here !
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Step-by-step explanation: