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Two circles of radii 15 cm and 10 cm touch each other externally at a point A. PQ is the direct common tangent of those two circles of centers O ₁ and...
If the lengths of the diameters of two concentric circles are 16cm and 18cm respectively, then what will be the area of the region between them?
Find the area of the sector of a circle with radius 14 cm and central angle 90°.
A semicircle has a radius of 7 cm. What is the perimeter of the semicircle?
A square PQRS is inscribed inside a circle. Another circle is inscribed within the square PQRS, and this process repeats infinite...
What is the perimeter of the square inscribed in a circle of radius 6 cm.
In a circle AB is diameter & C is a point on circumference such that AC = 8 cm & BC = 15 cm then find the area of circle ?