Question

В прямоугольнике ABCD,AD равна 10 см,расстояние от точки пересечения диагоналей до стороны AD 3 см,найти площадь

Answer 1

отрезок ОК=3см и перпендикулярен АD, т.е. AK=KD=5см, OK=1\2AB=3cм, значит АВ=6см

Answer 2

Диагональ =3+3 =6 
S=1\2*d(в квадрате ) * sin A

Answer 3

Problem Analysis

We are given a rectangle ABCD, where AD is equal to 10 cm. The distance from the intersection of the diagonals to the side AD is 3 cm. We need to find the area of the rectangle.

Solution

To find the area of the rectangle, we need to know the lengths of the sides. Let's analyze the given information and use it to find the missing side lengths.

From the given information, we know that AD is equal to 10 cm. We also know that the distance from the intersection of the diagonals to the side AD is 3 cm. Let's call this distance x.

We can use the Pythagorean theorem to find the length of the diagonal BD. The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of