Find the perimeter of a triangle if one side is 20 dm and the other two sides are 13 dm and 15 dm.
| April 5, 2021 | education
Given:
The length of one side of the triangle is 20 decimeters.
The length of the second side of the triangle is 13 decimeters.
The length of the third side of the triangle is 15 decimeters.
The perimeter is the sum of the lengths of all sides of a shape.
Find the perimeter of this triangle:
20 + 13 + 15 = 48 decimeters.
The first answer is correct.
Answer: 48 decimetres
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