Question

In a ΔPQR,if<P=30°,<Q=60°,then <R =......
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Answer 1

Answer:

Angle R= 90°

Step-by-step explanation:

Angle P + Angle Q + Angle R= 180° (Angle sum property of triangle)

=> 30°+60°+Angle R= 180°

=> Angle R= 180°-90°

=> Angle R= 90°

Answer 2

Step-by-step explanation:

we know that,

sum of all interior angles of traingle = 180°

^P+^Q+^R =180°

30°+60°+^R=180°

90°+^R=180°

^R=180°/90°

^R=20°

hope it will help you

thanku