boomerang
Four SIdes
No shape does. If it has 4 sides and one pair of parallel lines it cannot have only 1 right angle, it must either have: 1) 2 right angles, 1 acute acute and 1 obtuse angle; or 2) no right angles, 2 acute angles and 2 obtuse angles; in which case it would be a trapezium (trapezoid).
It ha one right angle, two obtuse angles and one acute angle
It is nearly the shape of a square but one side is sloping and I think it is called a trapezoid
boomerang
No plane geometric figure can have one acute and three right angle only, at least two other angles must be included
A trapezium, a kite, a number of miscellaneous quadrilaterals.
arrowhead :)
you cannot make a regular shape which has 3 right angles only, you will always end up with 4 right angles
No it is impossible for a right triangle to have an obtuse angle therefore it will have one right angle and two acute angles.
A right angle triangle has one 90 degree angle and two acute 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.
No, a right angle is 90 degrees and an acute angle is one with less than 90 degrees.
What about the other angle(s). You need at least 3 sides and 3 angles to make a closed figure.
A right-triangle has a right angle (90o) and two acute angles.
An acute angle is one that is less than 90 degrees. A right angle is 90 degrees.