2) The perimeter of a triangle is 150m and its sides are in the ratio5:12:13.Find the area of the triangle.(area :750 sq.m)3) A triangular park ABC has sides 120m,80m,50m.A gardener hasto put fence all around it and also plants grass inside.Find thearea of planted grass and also find the cost of fencing it withbarbed wire at the rate of Rs.20 per metre leaving a space of3m wide for a gate on one side.(area-375v15 sq.m,cost-Rs.4940)4) Find the area of equilateral triangle whose perimeter is 150m.(area-625V3 sq.m)5) Find the area of triangle whose sides are 9m,8m,3m.6) Find the area of an isosceles triangle whose equal sides is 40cm7) The sides of a triangle are in the ratio 3:5:7 and its perimeter is8) Find the area of a triangle, two sides of which are 8cm and(area-2v35 sq.m)and unequal side is 18 cm.(area:378v31 sq.cm)300m.Find its area.(area:1500v3 sq.m)11cm and the perimeter is 32cm.(area:8v30 sq.cm)