Can someone help me in Geometry? Question posted below.

- anonymous

Can someone help me in Geometry? Question posted below.

- chestercat

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- anonymous

##### 1 Attachment

- marigirl

Angles on a line add to 180. so we could denote angle AEC as x and make everything equal to 180

- anonymous

I know that this angel is supplementary. (= 180 degrees). I just don't remember how to solve this equation to figure out the exact amount that angle AEC =. Do you know how to solve it @marigirl ?

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## More answers

- marigirl

Would you have answers to check my working?
I would add all the angles uo
AEB+BEC+CED
11x-12+x+4x+1=180
16x-11=189
x=191/16
Calculate angle AEC
11x-12+x
=524/4

- anonymous

Which part do I need to solve?

- marigirl

I added all the angles up and made it equal to 180
and then found angle AEC (which is what the question asked)
would you be able to look at the answers to see if we are on the right track?

- anonymous

What's the answer?

- marigirl

I think its
525/4
or 131.25 degrees

- anonymous

So AEC = 131.25?

- marigirl

I think so

- anonymous

Are you sure on that answer?

- marigirl

I would add all the angles up
AEB+BEC+CED
11x-12+x+4x+1=180
16x-11=180
x=191/16
Question asked to calculate angle AEC
11x-12+x =525/4 or 131.25 degrees
That is what i think the answer is

- madhu.mukherjee.946

@TQKMB what happened

- madhu.mukherjee.946

your angle aec =139

- anonymous

@madhu.mukherjee.946 How did you get 139?

- madhu.mukherjee.946

okay wait i'm telling u

- anonymous

@madhu.mukherjee.946 How did you get 139?

- madhu.mukherjee.946

your ec is bisecting the angle bed

- madhu.mukherjee.946

so angle ceb =angle ced

- madhu.mukherjee.946

so if angle ced=4x+1 your angle ceb =4x+1

- madhu.mukherjee.946

now angle aeb=11x-12 is given

- madhu.mukherjee.946

now there is a geometric property that states that angles on a straight line =180

- madhu.mukherjee.946

now 4x+1+4x+1+11x-12=180
19x-10=180
19x=190
x=10

- madhu.mukherjee.946

so now angle aec=angle aeb+angle bec
=11x-12+4x+1
now putting x=10
=110-12+40+1
=139

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