Combination of Circle and Triangles : Find the radius of the circle whose area is sum of the area of two triangles whose sides are '35, 53, 66' and `33, 56, 65'.

Find the radius of a circle whose area is 616 cm^(2) .

Find to the three places of decimal the radius of the circle whose area is the sum of the areas of two triangles whose sides are 35,53,66 and 33,56,65 measured in centimetres.

The radius of a circle is 14cm. Find the radius of the circle whose area is double of the area of the circle.

Find the area of a circle whose radius is 2.1 m.

Find the area of circle whose diameter is 21 cm

The area of triangle whose sides are 10,10 and 16 is

Find the area of the circle whose perimeter is 132 cm.

What is the radius of a circle whose area is equal to the sum of the area of two circles whose radii are 20 cm and 21 cm .

Each side of an equilateral triangle is equal to the radius of a circle whose area is 154 cm . The area of the triangle is