Question

find the unknown value in the following​

Answer 1

Answer:

$angle \: p + angle \: r + angle \: q \: = 180 \\ therefore \\ 30 + 90 + y = 180 \\ 120 + y = 180 \\ y = 60$

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Answer 2

P = 30°

Q = 90°

R = y

Angle sum property of triangle = 180°

P + Q + R

30° + 90° + y = 180°

120° + y = 180°

y = 180° - 120°

y = 60°

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