Yes it has 360 degrees around it
Any two angles which sum to 180o are called Supplementary Angles
Angles that are separated by a distance. For example, any two angles of any polygon do not intersect and they are coplanar.
No, rectangles do not have any acute angles. All angles in a rectangle are right angles, measuring 90 degrees. Therefore, the angles in a rectangle are either right angles or supplementary, but they cannot be acute.
A square has 4 angles
Yes, there are eight angles.
Usually a dot dot dot in any correspondence means "to be continued". Sounds like he expects to visit with you again.
No a sphere doesn't even have any angles
A decagon can have acute angles.
A polygon with six or more sides, in which four of the angles are right angles and the other angles are not. These others are of any type - as required. It cannot be a pentagon because, if 4 angles are right angles, the fifth would be 180 degrees!
A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.A quadrilateral is any polygon with 4 sides - and hence with 4 angles. Those angles may, or may not, be congruent.
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Supplementary angles can have any number of angles as long as the angles add up to 180 degrees.