Prove using alphabets how triangle acd is proportional to triangle aef (f is on the right side)

Can someone me with the property questions for 12 13 and 14 plz

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone