Respuesta :

avictoriahelber
This is actually a very simple problem just with a lot of work. First you add all of the equations up then you set it up equal up to 180. So
x + 24 + x + 15 + x + 10 = 180
Then toured add up x's and whole numbers, so
3x + 49 = 180
Then you solve for x. After you since for you plug it in the the equations.
So A is ___°, B is___°, and C is ____°.
Then you add those up and subtract your answer from 180.
budwilkins
1) Let's use B and D to solve x first:
B + D = 180, because their opposite arcs total 360 (whole circle), and inscribed angles are 1/2 of their opposite arcs
x+10 + x+24 = 180
2x + 34 = 180
2x +34-34 = 180-34
2x = 146
x = 73

2) now that we have x, let's use the same time to show that A + C = 180
x+15 + C = 180
73+15 + C = 180
C +88-88 = 180-88
C = 92°

Otras preguntas