Question

In ∆ PQR, angle P=37° , angle Q=105•5° , find angle R

Answer 1

angle P+ angle Q+ angle R=180°
by angle sum property
37°+105.5°+ angle R=180°
142.5°+ angle R=180°
angle R=180°-142.5°
=37. 5°
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Answer 2

Hlo friend!!

Your answer!!

Angle p + angle q + angle r = 180°(angle sum property)

37+105.5+ r=180

142.5+r=180

R=180-142.5

R=37.5°

Hope it helps..