There are infinitely many angles which are acute.
One acute angle
alot
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.
A scalene triangle could have three acute angles, one right angle and two acute angles, or one obtuse angle and two acute angles.
An acute angle has one angle.
There are infinitely many angles which are acute.
One acute angle
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. In addition there are concave octahedra. Some of these will have no obtuse angles, others will have several.
alot
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.
There are no acute angles in a rectangle which has 4 equal interior right angles
An acute angle is an angle that is less than 90 degrees.
A triangle has at two acute angles and the third angle is either an acute angle, a right angle or an obtuse angle.
The question appears to relate to the angles of a triangle. 1) If angle 3 is acute then the other two angles can also be acute. In the case of an equilateral triangle all three angles are equal and acute. 2) If angle 3 is acute and one other angle is obtuse then the remaining angle is acute. 3) If angle 3 is acute and one other angle is a right angle then the remaining angle is acute.
A scalene triangle could have three acute angles, one right angle and two acute angles, or one obtuse angle and two acute angles.
A certain kite has exactly one acute angle