The ratio of the volume of two cylinders is 7 : 3 and the ratio of their heights is 7 : 9. If the area of the base of the second cylinder is 154 sq. cm, then what will be the radius (in cm) of the first cylinder?
Find the surface area (in cm2) of a sphere of diameter 28 cm.
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What is the measure of an interior angle of a regular polygon of 8 sides?
Find the volume (in cm3) of a right circular cone of diameter 7 cm and height 7 cm.
∆PQR is right angled at Q. If m∠P = 60 deg, then find the value of (secR + 1/2).
Find the volume (in cm3) of a hemisphere of diameter 7 cm.
In ΔPQR measure of angle Q is 90 deg. If tanP = 24/7, and PQ = 14cm, then what is the length (in cm) of side QR?
Find the surface area (in sq.cm) of a sphere of diameter 14 cm.
If the edge of a cube is increased by 3 cm, the volume will increase by 657 cub.cm. What then is the original length of each edge of the cube?
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