1.
If the diagonal of a rectangle is 17 cm long and its perimeter is 46 cm. find its area.
2.
The diagonals of two square are in the ratio of 2:5. find the ratio of their areas.
3.
A man walking at the speed of 4 km/hr crosses a square field diagonally in 3 minutes the area of the field is:
4.
Two cross roads, each of width 5 m, run at right angles through the center of a rectangular park of length 70 m and breadth 45 m and parallel to its sides. Find the area of roads.
5.
The sides of a triangle are x, y and z if x + y=7m, y + z=9 m & z + x= 8 m , then find area of the triangle.
6.
The diagonal of a rectangle is √41 cm and its area is 20 sq cm. The perimeter of the rectangle must be:
7.
The altitude drawn to the base of an isosceles triangle is 8 cm and the perimeter is 32 cm. Find area.
8.
If the height of an equilateral triangle is √6 cm, its area is
9.
The sides of the triangle are 3 cm ,5 cm and 4 cm. Its area is
10.
Find the length of the altitude of an equilateral triangle of side 3√3 cm.
