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March-2017
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Q3 of 23 Page 1

Solve Question:

The volume of a cube is 1000 cm3. Find its total surface area.

⇒ Let Side of cube be x


Volume = x3


1000 = x3


X = 10cm


⇒ Surface area of cube


Area = 6 × X2


Area = 6× 102


Area = 600cm2


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From the top of a lighthouse, an observer looks at a ship and finds the angle of depression to be 60° If the height of the lighthouse is 84 meters, then find how far is that ship from the lighthouse?

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Questions · 23
March-2017
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