A12-ft ladder is placed 5 feet from a building. approximately how high does the ladder reach?

If your adding its 17, Subtracting its 7, multiplying its 60 and dividing its 2.4 hope this helps

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct