A side of a triangle below has been extended to for an exterior angle of 161° find the value of X
To find the value of X, we need to use the fact that the sum of the exterior angles of a triangle is always 360°.
In this case, the given exterior angle is 161°, so we can find the value of X by subtracting this angle from 360° and then dividing the result by 2 since the exterior angle and the interior angle at the vertex of a triangle are supplementary.
Therefore,
360° - 161° = 199°
199° / 2 = 99.5°
So, the value of X is 99.5°.