Answer:
Angle 1: 137 degrees
Angle 2: 47 degrees
Angle 3: 17 degrees
Step-by-step explanation:
To find angle 1, we must look at the supplementary pair given to us. One angle is 43 degrees. If we remember, a supplementary pair adds up to 180 degrees. To find angle 1, simply subtract 43 from 180 to get 137 degrees.
Equation: 180-43
To find angle 2, we must remember that all interior angles in a triangle add up to 180 degrees. We have two angles given, a right angle (90 degrees) and 43 degrees. Subtract 43+90 from 180 to get 47 degrees.
Equation: 180-43-90
To find angle 3, use the information gained from finding angle 1 (137 degrees) and the given angle (26 degrees) and subtract both measurements from 180. Doing this gets 17 degrees.
Equation: 180-137-26.
Hope this helped!
