Question
The inner radius of a cylindrical container is 3 cm. If the
length of the container and the thickness of the container are 18 cm and 4 cm, respectively, find the volume of the container. (Use π = 22/7)Solution
ATQ,
Outer radius of the container = 3 + 4 = 7 cm
Volume of the cylindrical container = π × height × [(outer radius)² - (inner radius)²]
= (22/7) × 18 × (7² - 3²)
= (22/7) × 18 × (49 - 9)
= (22/7) × 18 × 40
= 1,488 cm³
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