Question

a triangle having side by side 6cm, 8 cm and 10 m is revolved about side of length 6 cm find the volume of solid so formed

Answer 1

If a triangle having side by side 6cm, 8 cm and 10 m is revolved about side of length 6 cm, then its slant height is 8 cm, its radius and height are 6 cm.

for the cone,
radius, r,=6 cm
height, h=6 cm
slant height, l=8 cm

volume of a cone=1/3×pi×r²×h
=1/3×22/7×6×6×6
=22/7×2×6×6
=1584/7
≈226.28