The problem asks to find the size of angle $k$ in the triangle. We are given an exterior angle of $244^\circ$, and two interior angles of the smaller triangles formed by the lines extending from the vertices where angle $k$ sits; these are $29^\circ$ and $35^\circ$.
2025/6/3
1. Problem Description
The problem asks to find the size of angle in the triangle. We are given an exterior angle of , and two interior angles of the smaller triangles formed by the lines extending from the vertices where angle sits; these are and .
2. Solution Steps
First, find the two interior angles adjacent to the exterior angle of .
Since the sum of angles on a straight line is , these two angles can be found by subtracting and from respectively. However, since we know the exterior angle we calculate the adjacent interior angle by .
The sum of angles around a point is . The interior angle adjacent to is .
Then, calculate the remaining interior angles of the main triangle by finding the supplementary angles to and .
Supplementary angle to . But since we know the supplementary angle to the exterior angle that forms with the we proceed.
Let the two remaining angles in the triangle be and .
, we want the other angle.
, we want the other angle.
So instead use the , to construct small angles from and
Let the two angles be and .
We know that . Then .
We know that the sum of angles in a triangle is .
doesn't work.
Let's try another approach. The adjacent angles of and are and such that the given exterior angle is .
The angle at the bottom is therefore . Therefore the sum of the other two angles is
.
Let's find the angles in the two smaller triangles near the bottom vertices.
The small angles are and . We know therefore that is an exterior angle that can be found from
However, if the two smaller angles were inside the main triangle, and , becomes a problem.
The two inside angles are not formed by small triangles, therefore the angle we have been given is .
Thus we now only need the angles of .
Final angles are now .
Since the sum of angles in a triangle is , we have so . This can't be either since this can't be $244 =29+35+2(90)=
2
3
4.
Looking closely we realize that the and do not make up the inside angles, but the exterior angles to them. So , and the other exterior angle = . So . This does not add up therefore
Let us draw a diagram and see where that gets us
3. Final Answer
64