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Question
Find the unknown angles in the given figure:
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Solution
In the figure,
Let each equal angle of an isosceles triangle be x,
then x + x = 86° ⇒ 2x = 86°
⇒ x =`(86°)/2=43°`
But p + x = 180° ..........(Linear pair)
p + 43° = 180°
⇒ p = 180° − 43°
⇒ p = 137°
Hence p = 137°
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