Find the midline of an equilateral triangle with a perimeter of 54 cm.
| June 10, 2021 | education
An equilateral triangle is a triangle in which all three sides are of equal length. Since the perimeter of this triangle is 54 cm, then to calculate the length of its sides, gently divide the perimeter into three:
AB = BC = AC = P / 3;
AB = BC = AC = 54/3 = 18 cm.
The middle line of a triangle connects the midpoints of the lateral sides of this triangle, and its length is equal to half of the side that is parallel to it:
m = AC / 2;
m = 18/2 = 9 cm.
Answer: The middle line of this triangle is 9 cm.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
