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Therefore, The Curved Surface Area of Hemisphere =1/2 × 4 × πr 2. Curved surface area of a hemisphere = 2πr 2. Since a sphere is a combination of a curved surface and a flat base, to find the total surface area we need to sum up both the areas. The flat base being a plane circle has an area πr 2.
The best example of a sphere is a football, basketball, etc. And when a great circle bisects the sphere into two equal parts, they are the hemispheres. Let us see the important formulas. Surface Area of a Sphere = 4 times that of its great circle = 4πr² = πd²; Volume of a Sphere = \( \frac{4}{3} \) πr² = \( \frac{π}{6} \) d³
The volume of a sphere is 38808 cm 3.Its curved surface area is (a) 5544 cm 2 (b) 8316 cm 2 (c) 4158 cm 2 (d) 1386 cm 2
The weight of a metallic solid sphere varies as the density of its material when its diameter is constant and varies as the diameter when density is constant. A sphere having density 2.1gm/cm 3 and diameter 2 cm, weighs 2.2 gm. Find the weight of a sphere whose diameter is 1 cm and density is 6.3 gm/cm 3.
Find the volume and surface area of a sphere of radius 14 cm. volume:34,212 & surface area:2364; volume:32,112 & surrface area:2564
A sphere of radius 0.03 m is suspended within a hollow sphere of radius 0.05 m. If the inner sphere is charged to a potential of 1500 volt and outer sphere is earthed, find the capacitance and the charge on the inner sphere.
Find the surface area of a sphere, if its volume is 38808 cubic cm. ( π π π = 22 7) View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:the volume of a sphere is 38808 cm 3 find its radius.
The volume of a sphere is increasing at the rate of 8 c m 3 / s. Find the rate at which its surface area is increasing when the radius of the sphere is 12 c m . Open in App
Prove that the altitude of the right circular cone of maximum volume that can be inscribed 8 in a sphere of radius r is 4 r 3. Also show that the maximum volume of the cone is 8 27 of the volume of the sphere.
The diameter of a sphere is 3.34 m. Calculate its volume with due regard to significant figures. Calculate its volume with due regard to significant figures. View Solution
