The length of the first side of the triangle is 24 m, the length of the second side is 15 m longer than the length of the first

| April 10, 2021 | education

The length of the first side of the triangle is 24 m, the length of the second side is 15 m longer than the length of the first, and the length of the third side is 6 m less than the length of the second. 1) find out the length of the third side of the triangle. 2) calculate the perimeter of the triangle

Find the length of the second side of this triangle.
According to the condition of the problem, the length of the first side of the triangle is 24 m, and the length of the second side of this triangle is 15 m longer than the length of the first side, therefore, the length of the second side of the triangle is:
24 + 15 = 39 m.
Find the length of the third side of this triangle.
According to the condition of the problem, the length of the third side of this triangle is 6 m less than the length of the second side of the triangle, therefore, the length of the third side of the triangle is:
39 – 6 = 33 m.
Find the perimeter P of this triangle:
P = 24 + 39 + 33 = 96 m.

Answer: the length of the third side of the triangle is 33 m, the perimeter of this triangle is 96 m.



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