Acute or obtuse: Yes. Straight: No.
Yes
An acute triangle.
You cannot.
first draw a ray .
Yes
Acute or obtuse: Yes. Straight: No.
It's entirely possible to draw a quadrilateral with 3 acute angles.The fourth angle must be obtuse or reflex, but so what ? !
yes
no
Yes
YesAcute =
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
A bit like a chevron or an arrowhead.
An acute angle has less than 90 degrees, an obtuse angle has greater than 90 degree but less than 180 degrees. A reflex angle has greater than 180 degrees.When in doubt, google image search.
Imagine a standard wall clock. 2:00 is an acute angle, 3:00 is a right angle, 4:00 is an obtuse angle, 6:00 is a straight angle, 7:00 is a reflex angle: greater than 180 degrees.