The perimeter of a triangle is 34 meter. the sides measure 16 meters, 8 meaters, and x meters. what is the value of x?

Need on this geometry question. explain how you did it.

Bc and bd are opposite rays. all of the following are true except a)a,b,c,d are collinear b)a,b,c,d are coplanar c)bc=bd d)b is between c and d

Aladder that is 20 ft. long against the side of a building. f the angle formed between the ladder and the ground is 75 degrees, how far is the bottom of the ladder from the base of the building?