Question

fill in the missing reasons for the proof of the theorem that all right angles are congruent. given: ∠f and ∠g are right angles. prove: ∠f≅∠g statements reasons 1) ∠f and ∠g are right angles. 1) given 2) m∠f = 90 and m∠g = 90 2) definition of right angles 3) m∠f = m∠g 3) substitution property of equality 4) ∠f≅∠g 4) definition of right angles definition of congruent angles substitution property of equality subtraction property of equality

Explanation:

Step1: Recall congruent - angle def

Two angles are congruent if they have the same measure. Since we have shown that $m\angle F=m\angle G = 90$, we use the definition of congruent angles.

Answer:

Definition of congruent angles