Question

Как решить? На отрезке DK=20см отметили точку A такую что DA=17см и точку B такую что BK=16см найдите длину AB

Answer 1

Никак потому что весь отрезок 20 см а 17 + 16 = 33

Answer 2

Finding the Length of AB

To find the length of AB, we can use the fact that AB is four times the length of BD. We are given that DA = 17 cm and BK = 16 cm. We can find the length of BD and then use it to calculate the length of AB.

Step 1: Find the length of BD. - Given: DK = 20 cm, DA = 17 cm, and BK = 16 cm. - Using the fact that AB = 4BD, we can find the length of BD by subtracting DA from DK and BK: BD = DK - DA - BK. - Substituting the given values, we get BD = 20 - 17 - 16 = 20 - 33 = 3 cm.

Step 2: Calculate the length of AB. - Using the relationship AB = 4BD, we can find the length of AB by multiplying the length of BD by 4: AB = 4 * BD. - Substituting the value of BD, we get AB = 4 * 3 = 12 cm.

Therefore, the length of AB is 12 cm.