Question

The total surface area of a solid hemisphere is 5940 cm square . Find the diameter of the hemisphere.

Answer 1

solution:

total surface area=5940cm2

therefore the diameter =6√70

Answer 2

The diameter of the hemisphere is 50.18 cm

Step-by-step explanation:

Total surface area of hemisphere = $3\pi r^2$

We are given that The total surface area of a solid hemisphere is 5940 cm square .

So, $3 \pi r^2=5940\\3 \times \frac{22}{7} \times r^2=5940\\r^2=\frac{5940 \times 7}{22 \times 3}\\r=\sqrt{\frac{5940 \times 7}{22 \times 3}}\\r=25.09$

So, Diameter = 2 \times r = 2 \times 25.09=50.18 cm

Hence the diameter of the hemisphere is 50.18 cm

#Learn more:

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