Read and analyze the problem carefully. Answer me question

Peter has three sticks measuring 19cm, 23cm, and 27cm. He lays them down
to form a triangle.

1. What is the measure of the angle formed by the 19-cm and the 23-cm sides to
the nearest degree?

2. What is the measure of the angle formed by the 23-cm and the 27-cm sides to
the nearest degree?

3. What is the measure of the angle formed by the 19-cm and the 27-cm sides to
the nearest degree?​