Question

Help me please! please click on this link (for pic of a triangle), and tell me how to find the value of x please!
https://media.glynlyon.com/g_pal_2012/6/img_triangle_intangles.gif

Answer 1

is x 90 degrees?

Answer 2

When you add the three angles of a triangle you always get 180

Answer 3

So x + 2x+15+4x-10=180

Answer 4

ok. so is x a right angle?

Answer 5

No. It is not.

Answer 6

oh

Answer 7

but each angle is not equal measures, right?

Answer 8

sorry

Answer 9

recall that all internal angles in a triangle SUM UP to 180 degrees
you were given all 3 internal angles, so SUM THEM UP

Answer 10

maybe i am getting interior and exterior confused

Answer 11

Right. The angles are not the same but if you add them you will get 180. Did you see the equation I posted?

Answer 12

yes i did. i wrote that down before i posted question. i had gotten that far