The perimeter of the quadrilateral ABCD is 84 dm2. What is the length of the AD side if AB = 15, BC = 31, BC = 16.
| June 29, 2021 | education
In order to find the unknown side of the quadrilateral ABCD, you need to subtract the lengths of its three known sides from its perimeter, then we get the expression, we find its value:
AD = 84 – 15 – 31 – 16 = 84 – 62 = 22 dm.
Answer: the length of the AD side is 22 dm.
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.
