Question

In the given figure PQ=PR. Then the value of ‘x’ is:​

Answer 1

x = 50

Step-by-step explanation:

here we know PQ=PR so if sides are equal then there opposit angle is equal.. so <R and <Q will be equal means <R = x <Q = x

and.. <QPR = 80 because vertically opposite angles are equal so that..

by angle sum property of a triangle

<Q + <R + <P = 180°

x + x + 80° = 180°

2x + 80° = 180°

2x = 180- 80

2x = 100

x= 50°