Their exterior angles add up to 360 degrees.
Five side is always a pentagon, but there's no pentagon that always has exactly one right angle. A regular pentagon has no right angles. An irregular pentagon can have one, two, or three right angles, or none.
Not always, there could be an obtuse triangle but that won't be turned into a four sided figure
The measurement of an interior angle of a pentagon depends on whether the pentagon is a "regular pentagon". The sum of the measures of the interior angles of any polygon can be calculated using the formula (n-2)180, where n = the number of sides. If the pentagon is a regular pentagon, then all of the interior angles are congruent (i.e. : 144 degrees). Interior angle is the inside angle of any angular object. A triangle for instance has three outside angles and three interior angles, the angles of the points from the inside.
a pentagon.
They have atleast one 90 degree angle.
Not sure what the question means. A triangle or quadrilateral may but need not contain an obtuse angle. A pentagon or any polygon with more sides must contain at least one obtuse angle.
they are all shapes
An angle. A polygon is a plane figure bounded by straight sides (triangle, quadrilateral, pentagon, etc).
540 The polygon with 5 side is called a pentagon. Pentagon can be divided into one triangle and a quadrilateral or three triangles. Both of these equal to 540 because the sum of the interior angle of a triangle is 180 and 360 for a quadrilateral.
No, a triangle has three sides, a quadrilateral has four.
No because a quadrilateral has 4 sides whereas a triangle has 3 sides.
A right angle triangle
If you mean an equilateral triangle then the 3rd angle is 60 degrees
it is a somehow slanted triangle.
A right triangle is not a quadrilateral. A quadrilateral is a polygon with four sides, while a right triangle has only three sides.
isolese triangle
Five side is always a pentagon, but there's no pentagon that always has exactly one right angle. A regular pentagon has no right angles. An irregular pentagon can have one, two, or three right angles, or none.