Question

In ∆LMN, ∠L = 60°, ∠M = 50°. If ∆LMN ~ ∆PQR then the value of ∠R is

Options

• 40°

• 70°

• 30°

• 110°

Answer 1

70°

Explanation;

Hint:

Since ∆LMN ~ ∆PQR

∠N = ∠R

∠N = 180 – (60 + 50)

= 180 – 110°

∠N = 70° ∴ ∠R = 70°