Question

14.
A well has been dug whose radius is 7m and which is 20 m deep. A 22m x 14 m
platform has been constructed from the soil excavated when digging the well. Find
the height of the platform.​

Answer 1

Answer:

Height of the platform is 10 m

Step-by-step explanation:

Radius of the well, r = 7m

Depth of the well, h = 20m

Therefore, volume of the well = π × $r^{2}$ × h

          Volume of the well = π × $7^{2}$ × 20

The length of the platform , l = 22m

The breadth of the platform, b = 14m

From the given information we can say that ,

  The volume of well = The volume of platform

        π × $r^{2}$ × h             =  Length × breadth × height

          π × $7^{2}$ × 20      =    22 × 14 × height of the platform

Height of the platform =  (π × $7^{2}$ × 20) / (22 × 14) =10 m

Answer 2

I will Give answer.

Step-by-step explanation:

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