The perimeter of the triangle is 56.4 units.
How to find the perimeter of a triangle?
The perimeter of the triangle can be found as follows:
The perimeter of a figure is the sum of the whole sides. Therefore, the perimeter of a triangle is the sum of the three sides.
perimeter of a triangle = x + y + z
where
- x, y and z are the three sides of the triangle.
Therefore,
perimeter of the triangle = 19.8 + (9.8 + 8.4) + (8.4 + (19.8 - 9.8))
perimeter of the triangle = 19.8 + 18.2 + 18.4
perimeter of the triangle = 56.4
perimeter of the triangle = 56.4 units
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