In the trapezoid base = 6; 12 cm. And height = half the sum of the bases. Find the area of the trapezoid.

univerkov | June 19, 2021 | education

Let us draw the height of the CH trapezoid, the length of which, by condition, is equal to the half-sum of the lengths of the bases, then CH = (BC + AD) / 2 = (6 + 12) / 2 = 18/2 = 9 cm.

Determine the area of the trapezoid.

Savsd = (ВС + АD) * СН / 2 = (6 + 12) * 9/2 = 18 * 9/2 = 81 cm2.

Answer: The area of the trapezoid is 81 cm2.

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.