Given: angle1 and angle2 are complements,
angle2 and angle3 are complements, and mangle1 = 35°.
prove: mangle3 = 35°
4 lines extend from a point and form 3 angles. the angles are labeled 1, 2, 3 from left to right.
complete the missing parts of the paragraph proof.
by the , we know that angle 1 is congruent to angle 3. the measure of angle 1 equals the measure of angle 3 by the definition of angles. then, using the property, the measure of angle 3 is degrees.