Question

The size of a square field is 35m long.Find the area of the field .Also find cost of levelling at the rate of rs.5 per square metre.​

Answer 1

Answer:

area of square= a^2

therefore 35 × 35 = 1225

therefore cost of levelling will be 1225 × 5= 6125

Answer 2

Analysis

In this question, we first have to find the area of the field and then multiply the rate of levelling per square metre to it.

Solution,

Length of the field, a = 35 m

Area of the field = a²

= 35 x 35

= 1225 m²

Cost of levelling per m² = Rs 5

∴ Cost of levelling 1225 m²

= 1225 x 5

= Rs 6125

Therefore,

The area of the field is 1225 m².

            AND

The cost of levelling it is Rs 6125.

Knowledge Bytes:

→ A square is a fire sided 2D figure with all sides as equal and parallel. All the angles of a square are 90°.

→ Perimeter of a square = 4a

→ Area of a square = a²