Area and Perimeter

The area of a square is 1024 sq. cm. What is the respective ratio between the length and breadth of a rectangle whose length is twice the side of the square and breadth is 12 cm less than the side of the square?

The angles of a quadrilateral are in the ratio of 2 : 4 : 7 : 5. The smallest angle of the quadrilateral is equal to the smallest angle of a triangle. One of the angles of the triangle is twice the smallest angle of the triangle. What is the second largest angle of the triangle?

The length and breadth of a rectangle are increased by 20% and 5%, respectively. Find the percentage increase in its area.

The area of a circle and a square are equal, then the ratio of their perimeter is

The sides of a triangle are in a ratio of 5: 4 : 3. If its perimeter is 24 cm. what is the area of the triangle?

The areas of two concentric circles are 1386 cm2 and 1886.5 cm2 respectively. The difference between the radius of two circles is

What is the area of circle which radius is equal to the side of square whose perimeter is 140 m?

If the diameter of a circle is 28 cm then what will be its area?

What will be the area of a square whose perimeter is 200 cm?

The area of the equilateral triangle, in which three coins of radius 1 cm are placed, as shown in the figure