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The length of the diagonal of a rectangle is 25 cm, and the ratio of its length to its breadth is 4:3. Find the area of the rectangle.

Two concentric circles of radii 10 cm and 6 cm are given. Find the length of the chord of the larger circle which touches the smaller circle.

ABC is an isosceles triangle inscribed in a circle. If AB = AC = 12√5 and BC = 24 cm then radius of circle is

A rectangle with a diagonal of length 28m is inscribed in a circle. Find the area of a circle?

The length of the each side of an equilateral triangle is 42√3. The area of incircle, (cm ² ) is

If O is the orthocentre of ΔABC , if ∠ BOC = 135⁰ then what is the measure of  ∠ BAC?

∆ABC and ∆DEF are similar and their areas are respectively 121 cm² and 144 cm ² . If EF = 24 cm BC is?

If G is the centroid and AD, BE, CF are three medians of ∆ABC with area 42 cm ² , then the area of ∆BGD is?