Question

Ad биссектриса,AB6см,AC15см,BD4см, Найдите CD

Answer 1

Ответ:CD=BC=4 см т. к. АD биссектриса делит угол и сторону пополам

Пошаговое объяснение:

Answer 2

To find the length of CD (let's call it x), we can use the angle bisector theorem. According to the angle bisector theorem, if an angle bisector in a triangle divides the opposite side into segments, then the ratio of the lengths of those segments is equal to the ratio of the lengths of the two sides of the triangle that form the angle.

In this case, we have a triangle ABC with angle bisector BD. The lengths of the segments are as follows:

AB = 6 cm AC = 15 cm BD = 4 cm (given)

Let CD = x (unknown)

Now, we can set up the ratio using the angle bisector theorem:

BD/CD = AB/AC

Substitute the given values:

4/x = 6/15

Now, cross-multiply and solve for x:

6x = 4 * 15 6x = 60

Divide both sides by 6 to find the value of x:

x = 60 / 6 x = 10 cm

Therefore, CD is 10 cm long.