Question

Find the cost of laying grass in a triangular field of sides 50m , 65m at the rate of rupees 7 per m²​

Answer 1

Step-by-step explanation:

Solution of this question

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

Answer 2

Answer:

10500 RUPEES IS YOUR ANSWER

Step-by-step explanation:

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