In triangle ABC, points M and N are the midpoints of sides AB and BC, respectively.
| May 2, 2021 | education
In triangle ABC, points M and N are the midpoints of sides AB and BC, respectively. The perimeter of triangle ABC is 22 cm. Find the perimeter of triangle MBN.
1. The perimeter of the triangle ABC = AB + BC + AC.
2. Since the middle line has divided the sides in half, and the value of its length is 1/2 of the base, the perimeter of the formed triangle MBN = 1/2 * AB + 1/2 * BC + 1/2 * AC = 1/2 (AB + BC + AC) = 1/2 * 22 = 11 centimeters.
Answer: 11 centimeters.
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