Extra Questions of Area and Perimeter

 

1. What is the area of triangle with sides of length 12 CM 13 cm and 5 cm?

2. the area of a right angle triangle is 40 square CM if its base is equal to 28 cm find its height?

3. The base of a triangular wall is 7 times its height if the cost of painting the wall at 350 rupees per hundred square metre is 1225 rupees then what is the base length?

4. The in radius of triangle is is 4 cm and its area is 34 square cm the perimeter of the triangle is?

5. lengths of the perpendiculars from a point in the interior of an equilateral triangle on its sides are 3cm 4cm and 5cm the area of triangle is?

6. the area of a rectangle whose length is 5 more than twice its width is 75 square units what is the perimeter of the rectangle?

7. if each of the dimension of a rectangle is increased by 200% the area is increased by?

8. the area of a rectangular field is 15 times the sum of its length and breadth if the length of that field is 40 metre what is the breadth of that field?

9. The length and the perimeter of a rectangle are in the ratio of 5: 18 what will be the ratio of its length and breadth?

10. the area of a rectangle lies between 40 cm square and 45 CM square if one of the sides is 5 cm then its diagonal lies between?