Question

4. In a triangle PQR, P=30°,Q= 40 °,So ZR=? a)90° b) 100° C) 110° d) 120°​

Answer 1

Answer:

110

Step-by-step explanation:

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Answer 2

Answer:

Option c is correct . The value of ∠R = 110°

Step-by-step explanation:

Given :

In ΔPQR,

∠P = 30°,∠Q = 40°

As we know that,

The sum of all the 3 angles of a triangle = 180°

∴ ∠P + ∠Q +∠R =180°

   30° + 40° + ∠R =180°

     70° +∠R =180°

             ∠R = 180° - 70° =110°