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Use the Triangle Exterior Angle Theorem.
x^(∘) ≈ 9.7^(∘)
We want to find the missing angle of the given triangle. In order to do so, we will use the Triangle Exterior Angle Theorem.
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The measure of an exterior angle is equal to the sum of its two remote interior angles. |
Let's visualize the theorem in a graph.
m∠ 1=m∠ 2+m∠ 3 Now, let's apply this theorem to the given triangle.
The sum of two interior angles is equal to the exterior angle.