Since bc is parallel to de, triangles abc and ade are similar. what are the lengths of the unknown sides? a. ac = 14 cm; ce = 8 cm b. ac = 12 cm; ce = 7 cm c. ac = 5 cm; ce = 10 cm d. ac = 10 cm; ce = 5 cm

Option D. AC= 10 cm and CE= 5 cm

Step-by-step explanation:

From the given figure two triangles ΔABC and ΔADE are similar and two lines BC║DE.

From these similar triangles we know

Therefore

Or AC=

Now from pythagoras theorem

AE = √(AD²+ED²) = √(12²+9²) = √(144+81) =√225 = 15 cm

Since we know side AC =

                                        =

                                        = 10 cm

Therefore AC = 10 cm and AE = 15cm and CE = (15-10) = 5 cm

only 10/60 isn't equivalent

hope this : )

a) 7x=7

step-by-step explanation: