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The surface area of a sphere of radius 21 cm is (a) 2772 cm 2 (b) 1386 cm 2 (c) 4158 cm 2 (d) 5544 cm 2. View Solution
Find the volume of the sphere. Question. The surface area of a sphere is $$ 616 \mathrm {cm}^ {2} $$. Find the volume of the sphere. Solution. Verified by Toppr. Let radius of sphere be r. Given, Surface area of sphere $$ =616 \mathrm {cm}^ {2} $$. $$ \therefore 4 \pi r^ {2}=616 $$.
We know that the surface area of sphere with radius r is A = 4 π r 2. It is given that the radius of the sphere is 14 c m . Then, A = 4 π r 2 = 4 × 22 7 × ( 14 ) 2 = 4 × 22 7 × 196 = 2464 c m 2 .
The rate of change of the surface are of a sphere of radius r when the radius is increasing at the rate of 2 cm/sec is _____.
The surface area of a sphere is 1386 c m 2. Its volume is (a) 1617 c m 3 (b) 3234 c m 3 (c) 4851 c m 3 (d) 9702 c m 3. View Solution . Q4. If the volume of a sphere ...
The rato between the curved surface area and the total surface area of a right circular cylinder is 1:2.Find the volume of the cylinder if its total surface area is 616 c m 2.
surface area of sphere is 1018 2/7=7128/7. Advertisement Advertisement New questions in Math. consider sinx-siny=p and cosx - cosy=q find the value of cos(x-y) In e ...
A sphere and a cube have the same surface area. Show that the ratio of the volume of the sphere to that of the cube is 6: π.
The surface area of a sphere is the same as the curved surface area of a cone having the radius of the base as 1 2 0 c m and height 1 6 0 c m. Find the radius of the sphere. Find the radius of the sphere.
Consider the given surface area of sphere = 324 π c m 3. Let, radius of sphere =r. We know that, Surface area of the sphere = 4 π r 2 c m 3. Now, 4 π r 2 = 324 π. r 2 = 81. r = 9 c m. 4 3 π r 3 = 4851. r 3 = 3 × 4851 × 7 4 × 22. Now, volume of the sphere, = 4 3 π r 3 = 4 3 π × 9 3 c m 3 = 972 π c m 3. Hence, this is the answer.
