A shuttle cock used for playing badminton has the shape of a frustum of a cone mounted on a hemisphere. The external diameters of the frustum are 5cm and 2cm, the height of the entire shuttle cock is 7cm. Find the external 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?