Given that:
we get that:
Now, recall that the interior angles of a triangle add up to 180°, therefore:
Substituting:
in the previous equation, we get:
GIVING BRAINLIEST FOR ANSWER AND STEPS:
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Given that:
we get that:
Now, recall that the interior angles of a triangle add up to 180°, therefore:
Substituting:
in the previous equation, we get: