Question

What do you know about the angles of a right triangle

1: Only one angle is a right angle and the others two are obtuse

2: Only one angle is a right angle and the other two are acute

3: one or more angles must be right angles

4: all angles might be right angles​

Answer 1

Answer: Choice 2

Only one angle is a right angle and the other two are acute

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Step-by-step explanation:

As the name suggests, a right triangle has a right angle. This is a 90 degree angle shown by a small square marker.

This leaves 180-90 = 90 degrees left for the other angles to add to. The other angles must be less than 90 for this to work. Therefore, these other angles are acute.

If we had a right angle and an obtuse angle like 120, then we'd have a sum of 90+120 = 210 which is over the 180 mark. This is why it's impossible to have a right angle and an obtuse angle at the same time for any triangle.