Answer:
Angle 1: 31 degrees
Angle 2: 121 degrees
Angle 3: 47 degrees
Explanation:
The sum of the angles of a triangle always add up to 180 degrees.
Hence, angle 1 would be
, since the square represents a right angle or 90 degrees.
The angle of a straight line is always 180 degrees as well, so
angle 2 can be found with
degrees.
Lastly, since we know that angle 2 is 121 degrees, we can find angle 3, as the sum of the angles of a triangle is 180.
Hence, angle 3 would be
degrees.
Hope this helps!