# Math Help - Solving for X.

1. ## Solving for X.

I need to solve for X in this problem first this are sides and i don't know how much do sides have to equal. I can't explain much because i don;t want to get you guys confused. The picture is uploaded.

THE RED SPOTS ARE ARCS, (Congruent angles)[ITHINK]

2. Originally Posted by vaironxxrd
I need to solve for X in this problem first this are sides and i don't know how much do sides have to equal. I can't explain much because i don;t want to get you guys confused. The picture is uploaded.

Are those red blobs meant to signify that thoe two angles are the same? If so, then you have an isosceles triangle and so two of the sides (and you will have to decide which two) have the same length .....

3. Originally Posted by mr fantastic
Are those red blobs meant to signify that thoe two angles are the same? If so, then you have an isosceles triangle and so two of the sides (and you will have to decide which two) have the same length .....
Well the sheet i have is Black and white , and the lines are a arc just like that so i assume those angles are congruent. if the angles are congruent the sides are also congruent?
(Sorry for not specifying the color)

4. Originally Posted by vaironxxrd
Well the sheet i have is Black and white , and the lines are a arc just like that so i assume those angles are congruent. if the angles are congruent the sides are also congruent?
(Sorry for not specifying the color)

5. Originally Posted by mr fantastic
Found it heres the picture with the answer din't seem so hard, but is this answer even possible? it;s overpassing 180

6. I don't think those values are angles ... looks like side lengths to me.

7. Originally Posted by skeeter
I don't think those values are angles ... looks like side lengths to me.
Yea sorry that's what i was asking can Sides be any length?

8. Originally Posted by vaironxxrd
Yea sorry that's what i was asking can Sides be any length?
Obviously whoever wrote the question knew in advance what the sidelengths were that enabled the triangle to be formed, and then expressed those sidelengths in terms of x.

9. Originally Posted by mr fantastic
Obviously whoever wrote the question knew in advance what the sidelengths were that enabled the triangle to be formed, and then expressed those sidelengths in terms of x.
one last question. Did i got X right which is 35 or not?

10. Originally Posted by vaironxxrd
one last question. Did i got X right which is 35 or not?
Correct.

Originally Posted by vaironxxrd
I need to solve for X in this problem first this are sides and i don't know how much do sides have to equal. I can't explain much because i don;t want to get you guys confused. The picture is uploaded.

THE RED SPOTS ARE ARCS, (Congruent angles)[ITHINK]

The triangle is iscoseles. Therefore, the two "Legs" are congruent. This means that you can find the value of x by making the 2 legs equal to each other.

4x + 10 = 5x - 25

x = 35

Both of the legs are equal so it doesnt matter what equation you put x back into.

So, 4 x 35 + 10 =140

Then, after that just put the value of x into the base to find the length.

3 x 35 + 5 = 110

So, the sides are 110, 140, 140

And, yes the sides can be any length. Only the angles have to add up to 180.

I know this was already answered but i just posted this to put all of the information into one reply.

Hope this helps!