In #triangleABC#, the interior angle at A is #51^circ# and the exterior angle at B is #119^circ#. The interior angle at C measures what?
Interior angle at C measures
Alterative method
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The exterior angle at B is supplementary to the interior angle at B. Therefore, the interior angle at B is (180^\circ - 119^\circ = 61^\circ).
In a triangle, the sum of the interior angles is always (180^\circ). So, to find the interior angle at C, you subtract the angles at A and B from (180^\circ).
[180^\circ - 51^\circ - 61^\circ = 68^\circ]
Therefore, the interior angle at C measures (68^\circ).
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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