Question

The height of the cone is decreased by curved surface area of cone by 20% and curved surface area of cone is increased of 50% of total surface area of cone . find the ratio between total surface area and curved surface area of cone

Answer 1

Answer:

You can now use the measurement of the side to find the area of the cone. The formula for the area of a cone is 3.14 times the radius times the side (πrl). Example 1: A cone has a radius of 3cm and height of 5cm, find total surface area of the cone.

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Answer 2

Let the change in volume be X

Change in volume× Volume of cone without change = Volume of Cone after change

$= X×\frac{3}{1} ×π×r2×h \\ \\ =\frac{3}{1}×π×(0.5r)2×1.2h \\ \\ </p><p></p><p> = X=0.3 </p><p></p><p>$

Which means 70% decrease