Question

which are the two adjacent angles? Identify the two non – common arms.

Answer 1

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In the given figure 'O' is the common vertex and OB is the common arm. Hence, ∠a and ∠b are called the adjacent angles. Linear Pair: A pair of adjacent angles is called linear pair, if their two non-common arms are opposite rays. Here adjacent ∠A and ∠B are linear pair The angle sum of a linear pair is equal to 180o.

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Answer 2

Explanation:

In the given figure 'O' is the common vertex and OB is the common arm. Hence, ∠a and ∠b are called the adjacent angles. Linear Pair: A pair of adjacent angles is called linear pair, if their two non-common arms are opposite rays.