Question

in ∆PQR, p=70, Q=60°, then find ,R=?​

Answer 1

Answer:

R = 50°

Step-by-step explanation:

Let the angle R be x

Angle P + Angle Q + Angle R = 180°

(Angle sum property)

70° + 60° + x = 180°

130° + x = 180°

x = 180° - 130°

x = 50°

Lets check!

LHS:

Angle P + Angle Q + Angle R

70° + 60° + 50°

= 180°

LHS = RHS = 180°

Hence, checked

Therefore, R = 50°

Answer 2

Answer:

therefore r=50°.the correct answer .