Question

Точка C принадлежит отрезку BD. Найдите длину отрезку BC, если BD=10,3 см, CD=7,8 см.

Answer 1

BC=BD-CD=10,3-7,8=2,5   Ответ: ВС=2,5 см

Answer 2

Solution:

Given that point C belongs to segment BD, we need to find the length of segment BC, knowing that BD = 10.3 cm and CD = 7.8 cm.

We can use the fact that in a given segment, the sum of the lengths of the two parts is equal to the length of the whole segment.

So, BC = BD - CD.

Calculation:

Using the given values: - BD = 10.3 cm - CD = 7.8 cm

We can calculate the length of BC: - BC = BD - CD - BC = 10.3 cm - 7.8 cm - BC = 2.5 cm

Therefore, the length of segment BC is 2.5 cm.