The middle line of the trapezoid is 30 cm and the sides are 20 cm and 18 cm, find the perimeter of the trapezoid

Let’s use the formula for the length of the midline of a trapezoid.

KP = (BC + AD) / 2.

(BC + AD) = 2 * KР = 2 * 30 = 60.

Let’s define the perimeter of the trapezoid.

P = AB + BC + CD + AD.

P = (BC + AD) + AB + CD = 60 + 18 + 20 = 98 cm.

Answer: The perimeter of the trapezoid is 98 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.