No
A trapezium, a kite, a number of miscellaneous quadrilaterals.
a quadrilateral can contain 2 right angles,one obtuse and one acute angle.
yes
yes in fact every triangle has at least one acute angle
No
A trapezium, a kite, a number of miscellaneous quadrilaterals.
No. There are quadrilaterals that have no right angles.no,what about a trapizoid or rhombus
a quadrilateral can contain 2 right angles,one obtuse and one acute angle.
yes
yes in fact every triangle has at least one acute angle
Some do, some don't.
It depends on what you mean. If you are looking for ONLY one right angle, then the only "named" quadrilateral I can think of is a kite. If you are looking for a quadrilateral with AT LEAST one right angle, then there are squares, rectangles, trapezoids, and kites. Of course, there are quadrilaterals out there without specific names with only one right angle or at least one. Hope this helps you! :-)
No. All triangles MUST have at least two acute angles.
an angle with a acute and right angle
An acute angle has one angle.
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