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WAEC Mathematics 2025 Paper

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Question : 30

Total: 50

A cylindrical container, closed at both ends, has a radius of 7 cm and a height of 5 cm. Use this information to answer the questions below. What is the volume of the container?

770 cm $^3$
35 cm $^3$
220 cm $^3$
154 cm $^3$

Solution:

Concept:

The volume of a cylinder is found using the formula

V = \pi r^2 h

.

Explanation:

The radius is

r = 7

cm and the height is

h = 5

cm.

Substitute into the formula:

V = \pi r^2 h = \dfrac{22}{7} \times (7)^2 \times 5

V = \dfrac{22}{7} \times 49 \times 5

V = 22 \times 7 \times 5 = 770

cm

^3

Thus, the volume of the closed cylindrical container is

770

cm

^3

.

Answer:

A.

770

cm

^3

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