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Triangles: Perimeter
Perimeter is a two-dimensional measure of the distance around the figure. For any polygon, the perimeter
is simply the sum of the lengths of all of its sides.
Perimeter of a Triangle
The perimeter of this triangle is 5 cm + 6 cm + 7 cm, or 18 cm.
It’s just that easy!
Perimeter is a two-dimensional measure, so it uses units like centimeters, meters, inches, or feet.
Question:
What is the perimeter of triangle ABC below?
A 14.5 in.
B 15 in.
C 18 in.
D Cannot be determined from the given information
