Question

Which of the following triangles are possible to draw?

1 A triangle with angle measures of 30°, 60°, and 90°.
2 A triangle with angle measures of 20°, 50°, and 105°.
3 A triangle with angle measures of 100°, 40°, and 45°.
4 A triangle with angle measures of 55°, 35°, and 80°.
5 A triangle with angle measures of 25°, 65°, and 90°.

Answer 1

#1. Simply because those measurements are actual measurements and it is really easy if you use a protractor.