Question

Calculate volume of hemisphere with radius 3.2 cm

Answer 1

Answer:

V ≈ 68.63 cm³

Step-by-step explanation:

the volume (V) of a sphere is calculated as

V = $\frac{4}{3}$πr³

the volume of a hemisphere is half the volume of a sphere, so

V = $\frac{1}{2}$ × $\frac{4}{3}$ πr³ = $\frac{2}{3}$ πr³ , then

V = $\frac{2}{3}$ π × 3.2³

  = $\frac{2}{3}$ π × 32.768

  ≈ 68.63 cm³ ( to 2 dec. places )