In a parallelogram ABCD, O is the intersection point of the diagonals. BD = 12 cm, AD = 8 cm

In a parallelogram ABCD, O is the intersection point of the diagonals. BD = 12 cm, AD = 8 cm, AO = 7 cm.Find the perimeter of the triangle BOC.

the diagonals of the parallelogram are halved by the intersection point.
So OС = AO = 7
ВO = OD = 12 ÷ 2 = 6
Parallel sides are equal, so AD = BC = 8
P = ВO + OС + BC
P = 6 + 7 + 8 = 21



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.