One side of the triangle is 10 cm, the second is 6 cm shorter than the first and the third is 3 times
| February 27, 2021 | education
One side of the triangle is 10 cm, the second is 6 cm shorter than the first and the third is 3 times longer than the second, which is equal to the perimeter of the triangle.
1. Find the second side of the triangle if it is 6 cm shorter than the first:
10 – 6 = 4 cm.
2. Find the third side of the triangle if it is 3 times longer than the second:
4 × 3 = 12 cm.
3. Find the perimeter of the triangle by the formula P = a + b + c:
P = 10 + 4 + 12 = 26 cm.
Answer: The perimeter of the triangle is 26 cm.
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