Yes providing that the other 2 angles are acute
Yes.
Yes. Every triangle with an obtuse angle must have two acute angles.
no, a square consists of all right angles
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Yes providing that the other two angles are acute
Yes.
Yes. Every triangle with an obtuse angle must have two acute angles.
yes. if the reflex angle is 260 degrees, the other is 100 which is obtuse
no, a square consists of all right angles
Acute or obtuse: Yes. Straight: No.
protractor
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No - simply because a 'reflex' angle (I think that's what you meant) is more than 180 degrees, and an obtuse angle is between 90 and 180 degrees.
Yes providing that the other two angles are acute
Yes providing the other 2 angles are acute
One angle must be an obtuse angle and the other two angles must be acute angles
Triangles are either accute, obtuse, or right. To draw an accute triangle start by drawing an accute angle (less than 90 degrees). Then extend the ends of the angle and connect them making sure that both new angles are also acute. To draw a right triange first draw a right angle. Then extend the angle and connect to form two accute angles. To draw an obtuse triangle first draw an obtuse angle (greater than 90 degrees). Then extend the sides of the angle and connect creating 2 accute angles.