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3. A well is dug 20m deep and it has a diameter of 7m. The earth which is so dug is spread out on

a rectangular plot

By Camila

3. A well is dug 20m deep and it has a diameter of 7m. The earth which is so dug is spread out on

a rectangular plot of 22m long and 14m broad . What is the height of the platform so formed?​

About the author
Camila


if the perimeter of a triangle is 6p + 10q and the two sides are 3p + 4q and p + 3q, then find
its third side.
​

a) Find the value of x in the expression x – 20 = 30. State and explain the axiom used
here.​

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