The symmetric property of congruence lets you say that if ∠h ≅ ∠k, then ≅ ∠h.

The Symmetric Property of Congruence lets you say that if ∠H ≅ ∠K, then ∠K ≅ ∠H.

Step-by-step explanation:

We have been given an incomplete sentence. We are supposed to fill in the blank to complete our given sentence.

Sentence:

The Symmetric Property of Congruence lets you say that if ∠H ≅ ∠K, then _____ ≅ ∠H.

We know that Symmetric Property of Congruence states that if , then .

Therefore, the missing word from our given statement is .

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: