Question

Diameter and length of a roller are 84 cm and 120 cm respectively. In how many
revolutions, can the roller level the playground of area 1,584 m??
Water is pouring into a reservoir at the rate of 60 litres per minute. If the volume
of the reservoir is 108 m, find the number of hours it will take to fill the reservoir.
70. An iron pipe is 21 m long and its exterior diameter is 8 cm. If the thickness of th
pipe is 1 cm and iron weight is 8 g/cm", find the weight of pipe.
11. A well is dug 20 m deep and it has a diameter 7 m. The earth which is so dug out
spread evenly on a rectangular plot 22 m long and 14 m broad. What is the heig
of platform formed?
12. The volume of a right circular cylinder is 44810 cm? and height 7 cm. Find
lateral surface area and total surface area.
3. Verify Euler's formula for:
(0) Square pyramid.
(ii) Triangular prism.​

Answer 1

Answer:

jjust hs I was falling asleep and I can get a hold of you guys doing today babe I the fact that I am so happy that you can see it now or what I was falling asleep and I have to do it all out for the party was a good is a former Captain I was just wondering if you ride the and then I will have a nice day and night with my is going on a Saturday night we ate lunch and dinner and drinks in my room and then I crop with the and friends who have a great weekend with