Question

lines amd angles question​

Answer 1

Let the two angles be x and y

We know that,

Sum of two interior angles = 180°

So, x + y = 180° -(eqn 1)

According to question,

x - y = 20° -(eqn 2)

Add eqn 1 and 2

x + y = 180°

x - y = 20°

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2x = 200°

x = 100°

So, x + y = 180° => 100° + y = 180°

Therefore y = 80°

Hence the angles are 100° and 80°

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