Question 42
Mensuration of SolidsA right pyramid is on a square base of side 4 cm. The slanting side of the pyramid is 2√3 cm. Calculate the volume of the pyramid.
- A.5 1/3 cm3
- B.10 2/3 cm3
- C.16cm3
- D.32cm3
Show the answer and explanation
Answer: B (10 2/3 cm3)
Explanation
Half the base diagonal = 2√2, so height = √(12 − 8) = 2 cm. V = ⅓ × 16 × 2 = 10 2/3 cm3.