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A circle touches all four sides of a quadrilateral. If AB = 18 cm, BC = 21 cm, and AD = 15 cm, then what is the length of CD?
Two chords of a circle 'PQ' and 'RS' crosses each other at an exterior point 'O'. Determine the length of the chord 'RS' if the chord PQ is 36 cm long, ...
The wheel of a car made 300 rotations. How much distance did the car travel if the diameter of the wheel is 28 inches? (1 inch = 2.54cm)
In the figure given below, a circle is inscribed in a triangle ABC. If AB = 18 cm, BC = 14 cm and AC = 16 cm, then find the length of YC.
A semicircle has a radius of 7 cm. What is the perimeter of the semicircle?
The area of a sector of a circle is 88cm² and the angle of the sector is 60º. Find the radius of the circle.
In a circle AB is diameter & C is a point on circumference such that AC = 13 cm & BC = 84 cm then find the area of circle ?