How do you use what you know about triangles to find the measure of third angle $A=23^circ, B=86^circ, C=x$ ?

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Answer 1 · 2017-02-09T17:01:45

We use the knowledge that sum of the angles of a triangle is $180^@$ to find e measure of third angle and $/_C=71^@$

We use the knowledge that sum of the angles of a triangle is $180^@$ to find e measure of third angle.

As $/_A=23^@$ and $/_B=86^@$

$/_C=180^@-23^@-86^@=71^@$

How do you use what you know about triangles to find the measure of third angle A=23^circ, B=86^circ, C=xA=23^circ, B=86^circ, C=x?