ECZ 2025 · O-Level Paper 2 · Question 11 — Mensuration

A bigger cone ABCDE of perpendicular height 18 cm from which a smaller cone BCD was cut to make a bucket ABDE, with AE = 12 cm and CF = 6 cm. [Take pi = 3.142]. A, B, C and D are also points on the surface of the earth. [Take pi = 3.142 and R = 3 437 nm]

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