Question

11. Find the area of a triangular field, two sides
of which are
510 m and 520 m and the
perimeter is 1560 m. Also find the cost of
the field at the rate of 521 per m2.​

Answer 1

Step-by-step explanation:

Let , and

S = 1 half left parenthesis a plus b plus c right parenthesis equals 1 half left parenthesis 275 plus 660 plus 715 right parenthesis equals 825

Area of the triangle is given by

=

=

=

Thus, area of field = 90750 m2

Now, the cost of cultivating 10000m2 = Rs. 200

The cost of cultivating the given field = Rs.200 over 10000 cross times 90750

= Rs. 1815

thank you :)