Find the perimeter of triangle ABC If side AB is 16cm BC is 14cm more than AB and AC is 2 times less than BC.
| May 31, 2021 | education
P (perimeter) is the sum of the lengths of all sides. P = a + b + c.
By condition, we have a triangle ABC, where AB = 16 cm, BC -?, But 14 cm more than AB, and AC is 2 times less than BC. Find the perimeter of R.
1) BC = AB + 14 = 16 + 14 = 30 (cm).
2) AC = BC / 2 = 30/2 = 15 (cm).
3) P = AB + BC + AC = 16 + 30 + 15 = 61 (cm).
Answer: the perimeter of triangle ABC is 61 (cm).
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