DronStudy Questions > Rocket made up of metal sheet is in the form of frustum of cone of height 16cm with radii of its lower and upper ends as 8 cm and 20cm respectively find the cost of market if the cost of metal sheet used is rupees 15 per hundred square . Use pi is equal to 3.14

Rocket made up of metal sheet is in the form of frustum of cone of height 16cm with radii of its lower and upper ends as 8 cm and 20cm respectively find the cost of market if the cost of metal sheet used is rupees 15 per hundred square . Use pi is equal to 3.14