In an isosceles trapezoid ABCD, the smaller base BC = 5 cm, the angle ABC = 135 degrees, the height of the trapezoid is 3 cm. Find the larger base.
The heights lowered to the larger base from obtuse angles will divide it into three parts, one of which is equal to the smaller one. The height also forms a triangle, in which two sides are equal, one is the height, and the other is part of the larger base.
5 + 3 + 3 = 11 centimeters.
Answer: 11 centimeters.
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.