Question

Дано авсд прямоугольник ас-диагональ угол сад=30 градусов ас=20 см.Найти площадь авсд

Answer 1

Решение на рисунке, на всякий случай проверь сам

Answer 2

Problem Analysis

We are given a rectangle ABCD with diagonal AC and angle CAD equal to 30 degrees. The length of AC is given as 20 cm. We need to find the area of rectangle ABCD.

Solution

To find the area of rectangle ABCD, we need to know the lengths of its sides. Let's use the given information to find the lengths of the sides.

From source we can see that AC = BD = 8 cm.

Now, we can calculate the area of the rectangle using the formula: Area = length × width.

Since AC = 8 cm is the length and BD = 8 cm is the width, the area of rectangle ABCD is:

Area = 8 cm × 8 cm = 64 cm².

Therefore, the area of rectangle ABCD is 64 square centimeters.

Answer

The area of rectangle ABCD is 64 square centimeters.