Question

A 20 m deep well with diameter 7m is dug and earth from digging is evenly spread out to form a platform 22m by 14 m . Find the height of platform​

Answer 1

Step-by-step explanation:

volume of well is pie r square height

=>22/7 ×7/2×7/2×20

=>770

volume of well = volume of platform

therefore,

770=l×b×h

=>770=22×14×h,770/308=h

=>h=2.5

Hope It Helps.....