First of all a right angle has no acute angles. They just have two straight angles. Angles that are 180
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A right-triangle has a right angle (90o) and two acute angles.
A trapezoid contains either:two acute angles and two obtuse angles orone acute angle, one obtuse angle and two right angles.
yes. to be and acute angle, all angles must be acute. Obtuse angles only one angle has to be obtuse. Right angles only need one too. Acute has to have every angle to be acute, if one angle is obtuse or right, it's automatically no an acute Angle anymore.
A triangle has at two acute angles and the third angle is either an acute angle, a right angle or an obtuse angle.
no an acute triangle does not have a right angle. if it had a right angle, it would be called a right triangle. to be an acute triangle, the triangle needs two angles that are smaller than 90 degrees.