Question

find the values of x and y in the adjoining figure.
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Answer 1

in ∆PQN

by angle sum property of triangle

50°+90°+x=180°

140°+x=180°

x=180°-140°

x=40°

in∆QNR

by angle sum property of triangle

30°+90°+y=180°

120°+y=180°

y=180-120

y=60°