Question

Find the cost of lying grass in the given triangular field at the rate of ₹ 10 per Sq.metre if the area of the field is 325.50 square metre.

Answer 1

Step-by-step explanation:

Rs 10500

Sides of the triangle are a=50m,b=65m,c=65m

Area of triangle, by Heron's formula =

s(s−a)(s−b)(s−c)

where,

s=

2

a+b+c

s=

2

50+65+65

s=90

Area of triangle =

90(40)(25)(25)

Area of triangle = 1500m

2

Cost of laying grass = Area ×7

Cost of laying grass =1500×7

Cost of laying grass = Rs 10500