Question

a dinking glass is in the shape of the frustum of cone of hight 14 cm the diamter of 2 circular ends are 4cm 2 cm find capacity of the glass

Answer 1

radius of upper end = r1 = 2cm
radius of lower end = r2 = 1cm
height of the frustum = h = 14cm
volume of frustum = 1/3πh(r1²+r2²+r1×r2)
= 1/3×π×14( 4+1+2 )
=1/3 × 22/7 × 14 × 7
=1/3 × 22 × 14
= 102.66cm³

Answer 2

ur answer is attached.....