Two or three.
It has twelve angles but all of them need not be acute.
There are three acute angles in an acute triangle and they add up to 180 degrees.
three
One acute angle
4
The simple diamond shaped: - - - - - - - - has 2 acute angles and 2 obtuse angles! :P
A cone has no acute angles because a cone is a 3D shape and not a 2D.
There are many possible shapes with two acute angles.
Two or three.
Two or three.
3
A heart is not technically a geometric shape, but it depends on how you draw a heart. If the angles measure less than 90 degrees, they are acute angles.
it has no acute angles
there are three acute angles in an acute triangle, because there are three corners.
A kite, a parallelogram, many ordinary quadrilaterals with no specific names.
In an acute triangle, all three angles are acute.