A bucket has top and bottom diameter of 40cm and 20cm respectively.find the volume of the bucket if it deapth is 12cm.also find the cost of tin sheet used for making the bucket at the rate 1.20per dm square
Answers
Answered by
3
Given:
r1 = 40cm
r2 = 20cm
h= 12cm
Volume = 1÷3 × 22÷7 ×12 ×[(40×40)+(20×20)+(40×20)]
= 22÷7 ×4 × ( 1600+400+800)
=22÷7×4×2800 =22×1600
=352cmcube
Answered by
0
"Given that cost of tin sheet used for making bucket per dm2 = 1.20
So total cost for 17.87dm2 = 1.20 x 17.87
Cost of tin sheet for 17.87dm2 = Rs. 2140 ps.
r1 = 40cm
r2 = 20cm
h = 12cm
Volume = 1÷3 × 22÷7 ×12 × [(40×40) + (20×20) + (40×20)]
= 22÷7 ×4 × (1600 + 400 + 800)
= 22 ÷ 7 × 4 × 2800 = 22 ×1600
= 352 cm cube
"
Similar questions