Question

the cost of laying grass in a triangular field of sides 50m,65m and 65m at the rate of Rs 7 per m^​

Answer 1

Answer:

answer is 216 rs per m^

Step-by-step explanation:

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Answer 2

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

Area of triangle, by Heron's formula =

$\sqrt{s(s - a)(s - b)(s - c)}$

where,

s = a+b+c/2

s= 50 + 65 + 65/ 2

s= 90

Area of rectangle =

$\sqrt{90(40)(25)(25)}$

$area \: of \: tri angle = 1500 \: {m}^{2}$

$cost \: of \: laying \: grass = a \times 7$

$cost \: of \: laying \: grass \: = 1500 \times 7$

$cost \: of \: laying \: grass \: = 10500 \: rs$

Answer : Cost of laying grass is Rs 10500.