Q. 10 B

# ΔLMN ~ ΔXYZ for the correspondence LMN ↔ ZYX. If m∠Z = 50, m∠X = 40, then m∠L + m∠N =

A. 10

B. 90

C. 110

D. 80

Answer :

In ∆LMN and ∆XYZ, the correspondence LMN ZYX is a similarity.

∴ mL = mZ = 50

And mN = mX = 40

Hence, mL + mN = 50 + 40 = 90

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