Question

Given △PQR≅△STU, m∠R=80°, and m∠S=70°, what is the measure of ∠Q?

Answer 1

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Answer 2

∆ PQR is congruent to ∆ STU

This means --
P = S
Q = T
R = U

R = 80°
S = P = 70°

So in ∆PQR, we know R = 80° , P = 70° and Q = ?

Using angle sum property of triangle,
P+ Q + R = 180°
70° + 80° + Q = 180°
150° + Q = 180°
Q = 30°

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