Question

find the volume and tsa of hemisphere of radius 2cm

Answer 1

Rebekah, the height of a hemisphere is its radius. The volume of a sphere is 4/3 π r3. So the volume of a hemisphere is half of that: V = (2 / 3) π r3.

Answer 2

volume of hemisphere = 2/3πrsquare=
2/3×22/7×2×2= 8.38 cm sq
tsa of hemisphere = 3πrcube
=3×22/7×2×2
37.71cm square