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Question

In the adjacent figure, if QTPR,TQR=40o and SPR=30o, find x and y.
570817_74416902995d4b90adaa6ff06f804457.png

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Solution

In TQR,
90o+40o+x=180o (Angle sum property of a triangle)
Therefore, xo=50o
Now, yo=SPR+xo (Exterior angle of triangle)
Therefore, yo=30o+50o
=80o

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