Question

Find the cost of laying grass in a triangular field of sides 50m, 65m and 65m at the rate of Rs. 10 per sq m. *​

Answer 1

Step-by-step explanation:

Semi perimeter of the field (s) =(50+65+65)/2

= 180/2

= 90 cm

By heron's formula,

Area of the triangle = √s(s-a)(s-b)(s-c)

=√90(90-50)(90-65)(90-65)

=√90(40)(25)(25)

=√3600×25×25

=60×5×5

=300×5

=1500m^2

Cost of laying grass = 1500×7

=₹10500

hope it helps you buddy ✌️✌️

Answer 2

Answer:

10500 is answer of question.