Question

thr length of the side of a triangle are 5cm 12cm 13cm . find the length of perpendicular form the opposite vertex to the side whose length is 13cm.

Answer 1

the length of perpendicular is either 5sinxor 12cosx sinx =12/13 so length is 5×12/13=60/13

Answer 2

Let "x" be the length of unknown side BD.

♦️5/13=x/12

♦️5×12=13x

♦️X=60/13.