The radius of a hemisphere is 7 cm, find its volume?
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The maximum number of common tangents that can be drawn to two disjoint circles is
If there are four lines in a plane, then what cannot be the number of points of intersection of these lines?
Find the total surface area (in cm²) of a right circular cylinder of diameter 42 cm and height 14 cm
What is the HCF (highest common factor) of 77 and 275?
A train is moving at the speed of 36 km/hr. How many seconds it will take to cover a distance of 600 meters?
Find the area (in cm²) of a semi-circle of radius 21 cm.
If 3x + 2 < 2x + 1 and x - 4 ≤ 2x - 1; then x can take which of the following values?