Answer:
The answer is 18
Step-by-step explanation:
Subtract 115 from 180
Add 65 and 97
Subtract 162 from 180
The measure of ∠MRN is 18°
The sum of angles of a triangle equals the straight angle which is 180°.
According to ques
∠RNM= 97°
∠RMA = 115°
∠RMA +∠RMN = 180° ( sum of angles on straight line )
115° + ∠RMN = 180°
∠RMN = 180° - 115°
∠RMN = 65°
∠RMN + ∠MRN + ∠RNM = 180° ( Sum of angles of triangle )
65° + ∠MRN + 97° = 180°
162° + ∠MRN = 180°
∠MRN = 180° - 162°
∠MRN = 18°
Hence , measure of ∠MRN is 180°
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