A 25m long ladder is rested on a wall. The foot of the ladder is 7m away from the wall. If the end of the ladder (resting on the wall) slides down 4m, then how far will its foot move away?
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The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?
Find the length of a transverse common tangent of the two circles whose radii are 3.5 cm, 4.5 cm and the distance between their centres is 10 cm.
The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area (in sq.cm) of the triangle?
Find the total surface area (in cm²) of a right circular cone of diameter 14 cm and slant height 10 cm.
The square root of which of the following numbers is irrational?
32% of a number is 80. What is the number?
A polygon has 9 sides. What is its interior angle?
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