nheim
nheim
08-05-2018
Mathematics
contestada
How do you find the measure of this angle ?
Respuesta :
kanest
kanest
08-05-2018
The lines through the sides in the circle indicate that the three sides are all of the same length, and therefore share the same angle.
A shape inside a circle will always have its angles equal 360, so you can find the individual angle with the following equation:
[tex]120 + 3x = 360[/tex]
Subtract 120 from both sides.
[tex]3x = 240[/tex]
Divide both sides by 3.
[tex]x = 80[/tex]
mBC's angle is
80 degrees.
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