The perimeter of the triangle RON is the sum of the side lengths
The perimeter of the triangle is 15 units
How to determine the perimeter of triangle?
From the question, we have:
ON = 5 units
Side lengths ON and OR are radii of the circle O.
So, we have:
OR = ON = 5 units
The chord RN has a length of 5 units.
So, the perimeter of the triangle is:
P = OR + ON + RN
This gives
P = 5 + 5 + 5
Evaluate
P = 15 units
Hence, the perimeter of the triangle is 15 units
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