One of the equal sides of an isosceles triangle is 13 cm and its perimeter is 50 cm. Find the area of the triangle.

The altitude and the base of a triangular field are in the ratio 6 : 5. If its cost is ₹ 49,57,200 at the rate of ₹ 36,720 per hectare and 1 hectare = 10,000 sq.m, find (in metre) the dimensions of the field.

Use the information given in the given figure to find:

(i) the length of AC.

(ii) the area of △ ABC.

(iii) the length of BD, correct to one decimal place.

The length and the breadth of a rectangle are in the ratio 9 : 5. If its area is 180 m²; the length (longest side) of the rectangle is :

1. 36 m

2. 20 m

3. 10 m

4. 18 m