All sides of the triangle are 12 cm. Each side is reduced by 2 cm find the perimeter of the resulting triangle.
| August 4, 2021 | education
1. Let’s find what the length of the side of the triangle has become after decreasing for this from its original length, subtract the number of centimeters by which this side was reduced.
12 – 2 = 10 (cm) is the length of the side of the triangle.
2. Find the perimeter of the triangle, since this triangle has the same sides, it is enough to multiply the length of the side by the number of sides.
10 * 3 = 30 (cm) perimeter of this triangle.
Answer: 30 cm.
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