15. The perimeter of the triangular field is 540m and its sides are in the ratio 25:12:5 find the area of the field.​

let the sides be 25x,12x and 5x then

25x+12x+5x=540

45x=540

x=25

sides are 25×12=300

12×12=144

5×12=60

we can find area by herons formula

i am unable to solve this problem

step-by-step explanation:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.