Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?
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?