Question

In the figure below, EC || AB. Find the length of EA.
A. 5
B. 7.5
C. 8.5
D. 10

Answer 1

you be able to use the fact that those are similar triangles

Answer 2

i'm talking triangle DEC and triangle DAB

Answer 3

this should allow you to find side DE

Answer 4

and then you can do 15-DE to find AE

Answer 5

I understand what you're saying, I just can't get it together though :/ like I can't get it idk why

Answer 6

\[\frac{DE}{15}=\frac{8}{12}\]

Answer 7

Solve that for DE

Answer 8

omg so 10

Answer 9

thanks so much @freckles :)

Answer 10

Well DE is 10

Answer 11

What is AE?

Answer 12

@lianacarolina are you still there?

Answer 13

yes i'm here okay so i need to find ae

Answer 14

Ok look at your picture
and remember we just found DE and were asked to find AE
You are given the length of AD which is 15

Answer 15

You should see that the length of DE plus the length of AE is the length of AD

Answer 16

basically DE+AE=AD
And and AD=15
so we have
DE+AE=15
and we just found DE=10
10+AE=15

Answer 17

So then AE is 5

Answer 18

yes

Answer 19

i see, wow thank you. would you mind helping with 2 more?

Answer 20

i might be able to help you with one more
food is on the way

Answer 21

okay i will make this fast then
In the figure below, BD bisects ∠ABC. Find the length of DC.

Answer 22

there's 1.2, 2.4, 3.6 & 4.8 as answers

Answer 23

again we have similar triangles
try to set up the ratios that are equal