Video solusi : A beam ABCD.EFGH. With AB=8 cm, BC=6 cm, and AD=AE=4 cm. Line segment AB, AD, and AE represent vector p, q and r.a. Find for parallel vector p, q and r.b. Find the length of the vector p, q and r.c. Draw and find a diagram which showing representatives of the vector:1) p+q 3) q+r 2) p+r 4) p+q+r