Any number of sides of 5 and above because all interior angles of regular polygons in this category will have obtuse interior angles.
Oh, what a happy little question! In a star shape, each point creates an angle. If we connect those points, we can see that each angle is less than 90 degrees, so there are no obtuse angles in a star. Just think of all those lovely acute angles coming together to make a beautiful star!
5
a triangle that contains an obtuse interior angle
An acute triangle has three interior acute angles An obtuse triangle has one obtuse and two acute interior angles
Well, what i thought was that a definition of a quadrilateral is a shape that has four angles.
Yes, there is a maximum number. Recall that the sum of the exterior angles is 360 degrees regardless of what kind of polygon it is. Since an obtuse angle is and angle that is greater than 90 degrees, four of them would be greater than 360 degrees so we could not have that in a polygon. Therefore, the maximum number of obtuse angles is 3.
Obtuse
This depends on the polygon.For a triangle (3-sides) : maximum 1 obtuse angle.Quadrialteral (4-sides): maximum 3 obtuse angles.For polygons with more sides, it is possible for all angles to be obtuse.
A regular polygon of n sides (where n > 4) has n obtuse angles. Since there is no limit to the number of sides that a polygon can have, there can be no limit to the number of obtuse angles in a shape.
triangel
An obtuse triangle has 3 sides.
5
Oh, what a happy little question! In a star shape, each point creates an angle. If we connect those points, we can see that each angle is less than 90 degrees, so there are no obtuse angles in a star. Just think of all those lovely acute angles coming together to make a beautiful star!
5
A triangle can have only one obtuse angle
The answer to this would be any acute polygon, such as an equilateral triangle. The definition of acute polygons is that no angle in the polygon is greater than or equal to 90 degrees.
octagon, trapezoid, pentagon...* * * * *Not true.A trapezium (or trapeziod) must have at least one acute angle.Any regular polygon with 5 or more sides has all obtuse angles. However, an irregular polygon can always have one or more non-obtuse angles (acute, right or even reflex).