Question

Find the cost of laying grass in a triangular field of sides 50m,65m and 65m at the rate of rs.7 per m².( use heron's formula)

Answer 1

_/=root

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=(a+b+c)/2

s=(50+65+65)/2

s=90

Area of triangle = _/90(40)(25)(25)

Area of triangle = 1500m2

Cost of laying grass = Area ×7

Cost of laying grass =1500×7

Cost of laying grass = Rs 10500

Answer 2

Answer:

10500 RUPEES IS YOUR ANSWER

Step-by-step explanation:

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