Q17 of 97 Page 786

The side of a square is equal to the side of an equilateral triangle. The ratio of their areas is

Let the side be x

Now,

Area of equilateral triangle =

And,

Area of square = side²

= x²

Therefore, the ratio is 4:√3

The base and height of a triangle are in the ratio 3 : 4 and its area is 216 cm². The height of the triangle is

The length of the sides of a triangular field are 20 m, 21 m and 29 m. The cost of cultivating the field at RS. 9 per m² is

The sides of an equilateral triangle is equal to the radius of a circle whose area is 154 cm². The area of the triangle is

The area of a rhombus is 480 cm² and the length of one of its diagonals is 20 cm. The length of each side of the rhombus is