If the volume of a cone is 48π cm³ and its height is 10 cm, find the radius of its base to the nearest decimal place.
Show answer & explanation
Correct answer: B
Explanation
Volume of the cone V = 1/3 × πr²h
48π = 1/3 × π × r² × 10
48 = 10r²/3
r² = 48 × 3/10
r² = 14.4
r = √14.4 = 3.79
r = 3.8 cm