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Question

Question 29

In ΔPQR, if P=60 and Q=40, then the exterior angle formed by producing QR is equal to

a) 60
b) 120
c) 100
d) 80

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Solution

As we know, the measure of exterior angle is equal to the sum of opposite two interior angles.

In ΔPQR,x is the exterior angle
So, x=P+Q
=60+40=100


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