Question

AB =?, BC = 4 СМ, AD = 1,5 СМ, DC = 1 СМ, BD - БИСЕКТРИСА​

Answer 1

Ответ:

5,12

Объяснение:

см РИС

Answer 2

To find the length of side AB, we can use the angle bisector theorem, which states that in a triangle, the ratio of the lengths of two sides is equal to the ratio of the lengths of the two segments into which the angle bisector divides the opposite side.

In your problem, you have triangle ABC with AD as the angle bisector. You're given the following information:

1. BC = 4 cm
2. AD = 1.5 cm
3. DC = 1 cm

Now, you want to find the length of AB.

Using the angle bisector theorem, we can write:

(AB / AC) = (BD / DC)

Plugging in the values:

(AB / 4) = (BD / 1)

Now, we need to find the length of BD. Since BD is the difference between BC and DC, we can calculate it:

BD = BC - DC BD = 4 cm - 1 cm BD = 3 cm

Now, we can plug this value back into the angle bisector theorem equation:

(AB / 4) = (3 cm / 1)

Simplify:

AB / 4 = 3

Now, solve for AB:

AB = 3 * 4 AB = 12 cm

So, the length of side AB is 12 cm.