Question

In ∆PQR, The bisectors of angle Q and R meet each other at point O. If ∠P = 800 , then find ∠QOR.

Answer 1

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Answer:

It is an isoselus triangle

angle P = 80 degree

other angles are of 50 degree each because,

80 + x + x = 180

2x = 180-80

2x = 100

x = 100/2

x = 50

So ,

The bisectors of angle Q and angle R

So,

angle OQR = 25degree

angle ORQ =25 degree

Because , the word bisect means half of an object , angle , etc

Therefore ,

angle O

25+25+O = 180

50+ O = 180

O = 180-50

O = 130

Therefore , the angle O is 130 degree