Question
Write $'T'$ for true and $'F'$ for false.
A right triangle cannot have an obtuse angle.
A right triangle cannot have an obtuse angle.
✓
Answer
True.
This is because the sum of three angles of a triangle must be $180°$.
So, if one of the angles is $90^\circ $, the sum of the other two angles must also be $90^\circ $.
So, none of the angles can be greater than $90^\circ $.
This is because the sum of three angles of a triangle must be $180°$.
So, if one of the angles is $90^\circ $, the sum of the other two angles must also be $90^\circ $.
So, none of the angles can be greater than $90^\circ $.
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