Question

10. The sides of a triangular field are in the ratio
5:3 : 4 and its perimeter is 180 m. Find :
(i) its area.
(ii) altitude of the triangle corresponding to its
largest side.
(iii) the cost of levelling the field at the rate
of 10 per square metre.​

Answer 1

5x+3x+4x=180

= 12x=180

= x=$\frac{180}{12}$

= x=15

therefore the sides are:-

5 x 15=75

3 x 15=45

4 x 15=60

(i) Area= $\frac{1}{2}$x base x height

=$\frac{1}{2}$x45x60

= area=1350

(ii) 60

plz mark as brainliest