Start by writing all of the congruence statements for the angles.
m∠ R=145^(∘)
Practice makes perfect
We are given that W X Y Z≅ P Q R S. Using this congruence relationship, we will find the measure of ∠ R. First, we can identify each pair of congruent angles.
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∠ W≅ ∠ P & ∠ X≅ ∠ Q
∠ Y ≅ ∠ R & ∠ Z≅ ∠ S
Since ∠ Y≅ ∠ R, we know that m∠ Y = m∠ R. Let's look at the relevant information on the given diagram.
Finally, we can determine the measure of ∠ R using the known measurements.
m∠ Y = 145^(∘) ⇒
m∠ R= 145^(∘)
