Find the total surface area and lateral surface area of a cylinder of radius 9m and height 8m Find the total surface area and lateral surface area of a cube of side 13m.
Answers
Answer: Total surface area and lateral surface area of the cylinder are 961.74m² and 452.57m².Total surface area and lateral surface area of the cube are 1014m² and 676m².
Step-by-step explanation:
Case 1:
Given, a cylinder's radius(r) = 9m and height(h) = 8m
∴The lateral surface area = 2×π×r×h m²
= 2×22/7×9×8 m²
= 452.57 m²
∴Total surface area = 2×π×r×(r+h) m²
= 2×22/7×9×(9+8) m²
= 961.74 m²
Case 2:
Given, a cube's side = 13m
∴The lateral surface area = 4×(side)² m²
= 4×13² m²
= 676 m²
∴Total surface area = 6×(side)² m²
= 6×13² m²
= 1014 m²