Asked by Charlyze
The measure of angle 1 is 30°, and the measure of angle 2 is 110°. (Image is not drawn to scale). What is the measure of angle 4?
Answers
Answered by
Anonymous
idk how to do this need help
Answered by
Bosnian
The sum of angles of a triangle =180°
Angle 1 + Angle 2 + Angle 3 = 180°
Subtract ( Angle 1 + Angle 2 ) to both sides
Angle 3 = 180° - ( Angle 1 + Angle 2 )
Angle 3 = 180° - ( 30° + 110° ) = 180° - 140° = 40°
Angles on one side of a straight line= 180°
In this case line 2 - 3 is a straight line so:
Angle 4 = 180° - 40° = 140°
Angle 1 + Angle 2 + Angle 3 = 180°
Subtract ( Angle 1 + Angle 2 ) to both sides
Angle 3 = 180° - ( Angle 1 + Angle 2 )
Angle 3 = 180° - ( 30° + 110° ) = 180° - 140° = 40°
Angles on one side of a straight line= 180°
In this case line 2 - 3 is a straight line so:
Angle 4 = 180° - 40° = 140°
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