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Plz answer with steps......✔️
Answer is 5m but I need steps

Answer 1

Answer:

5

Step-by-step explanation:

Diameter of well = 14 m.

Then, radius = 7 m.

Depth of well = 15 m.

Width of embankment = 7 m.

Radius of circular embankment = 7 + 7 = 14 m.

(i) Volume of earth dug out:

⇒ πr²h

⇒ π(7)² * 15

⇒ 735 π

(ii) Area of top of platform:

⇒ π(R² - r²)

⇒ π(14² - 7²)

⇒ π(196 - 49)

⇒ 147π

∴ Height of the embankment = Volume/Area

                                                =  735π/147π

                                                = 5.

Therefore, height of embankment = 5

Hope it helps!              

Answer 2

Answer is in attachment