Angles in a triangle 100, 90, x

Step by step, with the reason for every step · Angle facts · Geometry

Step by step

Question: find x when the angles in a triangle are 100°, 90° and x.

The angles we know already make 190°.

That leaves no room for x.

So this is impossible.

100 + 90 = 190 (more than 180°)

Answer

100 + 90 = 190 (more than 180°)