Question

The lengths of the sides of a triangular field are 11m,60m and 61m. What is expenditure for growing grass in the field at rate of rs 10 per m^2?​

Answer 1

Answer:

Step-by-step explanation:

by using heron's formula

s=1/2(a+b+c)

= 1/2(11+60+61)=66

area of triangle=√s(s-a)(s-b)(s-c)

                         =√66*55*6*5=√108900

                         = 330 m^2

expenditure= 10*330

                    = ₹3300

Answer 2

Step-by-step explanation:

Explaining bY step

Triangular field Are 11 , 60, 61 , The Rate Of Field is 10 per m 2

So Heron,s FORMULAE a +b+c/2

11 +60+61 = 132 /2

Dived 132/2 is 66 The side of Second formulae

s(s-a)(s-b)(s-c)

so

66(66-11)(66-60)(66-61)

66 x 55 x 6 x 5

So Multiply This term =108900 Square root

330 .

Then Multiply 10 per m2 = 330 x 10

= 3300