Question

АВСД трапеция . угол А= угол В=90градусов. Найти АВ

Answer 1

поставим точку К и получится, что СК параллельно АВ. это параллелограмм, следовательно АК=СD=3.
теперь берём треугольник СВК: по Пифагора ВК=8

АВ=АК+ВК=8+3=11

Answer 2

Finding the Length of Side AB in Trapezoid ABCD

To find the length of side AB in trapezoid ABCD, we can use the given information about the angles and the lengths of the other sides. From the provided search results, we can see that angle A and angle B are both 90 degrees. We can use this information to calculate the length of side AB.

Given: - Angle A = 90 degrees - Angle B = 90 degrees

We can use the information from the search results to calculate the length of side AB.

The search results do not provide a direct calculation for the length of side AB, but we can use the given angles and the properties of trapezoids to determine the length of side AB.

Using the given angles and the properties of trapezoids, we can calculate the length of side AB. However, the specific calculation for the length of side AB is not provided in the search results.

Therefore, based on the given information, the specific calculation for the length of side AB in trapezoid ABCD is not available in the provided search results.

If you have additional information or specific requirements for the calculation, please feel free to provide them, and I can assist further.