Question

The sides of a triangular ground are 5m, 7m and 8m respectively. Find the cost of levelling the ground at the rate of Rs. 10 per m^2. (use _/3=1.73).

Answer 1

the area of the triangle is =√10(10-5)(10-7)(10-8)
=√10*5*3*2
=10√3
=10*1.73=17.3m^2
so the cost will be=17.3*10
=RS.173

Answer 2

Answer:

Step-by-step explanation:

S=a+b+c/2

=5+7+8/2

=20/2

=10

Area/10 (10-5) (10-7) (10-8)

=10×5×3×4

=Root 600

So the cost is root 600×10=ans