There can be 10 obtuse angles. If there are no reflex angles there can by up to three acute angles (I think).
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A trapezium has 2 obtuse and 2 acute angles.
None. An acute triangle is one in which all angles are acute. An obtuse triangle is one in which one of the angles is obtuse. A right angled triangle is one in which one angle is a right angle (90o)
three. there are 2 obtuse
the answer is 5 each tip of the star is a acute angle and each angle on the inside of the star is an obtuse angle. there are 5 obtuse angles and no right angles.
there are no right angles in a rhombos, but there are 2 obtuse angles and 2 acute angles.