Question

A drinking glass is in the shape of a frustum of a cone of height 14cm the diameter of its two circular ends are 4 cm and 2cm find the capacity of the glass

Answer 1

Answer:

Step-by-step explanation:

Given:

R= 2cm

r= 1cm

h= 14cm

Volume of the glass = 1/3 pi h [ R sq + r sq. + Rr]

= 1/3 × 22/7 × 14 [ 4 + 1 + 4 ]

= 1/3×22×2×9

= 1×44×3

= 132cm cube

Volume in litres = 132 ÷ 1000

= 0.132 l

Thus, the glass can hold 0.132l

Hope it helps you

Answer 2

hey this is your answer

h=14 CM

R=2cm

r=1cm

volume

$1 \div 3 \ \times 22 \div 7 \times 14( 4 + 1 + 2) \\ = 44 \div 3 \times 7 \\ = 308 \div 3$