a metallic cylinder with base radius 2.8 cm and
height 12 cm. Also, find its weight if the metal
weighs 20 g per cm
Answers
The total surface area of the cylinder is 5253.24 cm². A cylinder's total surface area is equal to the sum of all of its faces' surface areas.
What is meant by the total surface area of the cylinder?
The formula πr²h, where r is the radius of the circular base and h is the height of the cylinder, determines the volume of a cylinder.
A cylinder's total surface area is equal to the sum of all of its faces' surface areas. The cylinder's total surface area—the sum of its curved and circular areas—has a radius of "r" and a height of "h."
The volume of a cylinder is π r² h, and its surface area is 2π r h + 2π r².
Curve surface of the cylinder = 2πrh
= 2 × 22/7 × 2.8 × 12
= 211.2 cm²
Volume of the cylinder = π× r² × h
=22/7 × (2.8)² × 12
= 295.68 cm³
Total surface area of the cylinder = 2πrh + 2π(r)²
= 2 × 22/7 × 2.8 × 12 + 2 × 22/7 × (2.8)²
= 5253.24 cm²
Therefore, the total surface area of the cylinder is 5253.24 cm².
To learn more about the total surface area of cylinder refer to:
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