BECE Mathematics 2025 Paper

Concept:Walking once round a circle covers its circumference, $C = 2\pi r$, where $r$ is the radius.Given:$r = 28 \text{ m}$, $\pi = \dfrac{22}{7}$Solution:$C = 2 \times \dfrac{22}{7} \times 28$Cancel 7 into 28: $\dfrac{28}{7} = 4$$C = 2 \times 22 \times 4 = 176 \text{ m}$Key point: $\pi r^2$ is the area of the pond, not the distance round it; $88$ m is only half the circumference ($\pi r$).Answer:Option C (176 m)