Side BC of triangle ABC is 17 cm. Side. AC is 8 cm larger than BC and 6 cm smaller than AB. Find the perimeter of the triangle.
| January 5, 2021 | education
To find the perimeter of a triangle, you need to know all the sides.
Side BC = 17 cm, find AC.
AC = BC + 8
AC = 17 + 8 = 25 cm.
Knowing the AC side, we find AB.
AB = AC – 6
AB = 25 – 6 = 19 cm
P = AC + BC + AB
P = 25 + 17 + 19 = 61 cm.
Answer: the perimeter of the ABC triangle is 61 centimeters.
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