It is known that AC = 32cm, BC = 9cm, CD = 12cm find the lengths of the segments AB and BD.

Brief entry

AC – 32 cm

BC – 9 cm

CD – 12 cm

AB -?

ВD -?

Let us find the length of the segment AB, for this we subtract the length of the BC from the length of the AC.

1) 32 – 9 = 23 (cm)

Let’s find the length of the segment BD, for this we add the length CD to the length of the BC.

2) 9 + 12 = 21 (cm)

Answer: length AB 23 cm, length BD 21 cm.