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Consider an irregular polygon with an even number of sides - 2n.
If the sides 1 and n+1 are of the same length, sides 2 and n+2, sides 3 and n + 3 etc and if the corresponding angles are the same, then the polygon will have a rotational symmetry of 180 degrees.
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∙ 11y ago
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What polygon's interior angles add up to the same number of degrees as a straight angle?
A straight angle has 180 degrees. A triangle is a polygon whose interior angles add up to 180 degrees.
What is the angle of rotation of circle and semicircle?
360 degrees and 180 degrees respectively
What is the angle measure for a regular polygon?
The sum of the internal angles of an n-sided polygon is (n-2)*180 degrees. So, for a regular polygon, each internal angle is (n-2)*180/n degrees.
How many degrees are in the sum of an interior angle and exterior angle of a regular polygon?
180
What is the measure of 1 angle assuming the polygon is regular?
The sum of the internal angles of an n-sided polygon is (n-2)*180 degrees. So, for a regular polygon, each internal angle is (n-2)*180/n degrees.
How many sides does a regular polygon if its interior angles are 270?
No regular polygon can have an interior angle of 180 degrees or more. No regular polygon can have an interior angle of 180 degrees or more. No regular polygon can have an interior angle of 180 degrees or more. No regular polygon can have an interior angle of 180 degrees or more.
What is the angle of rotation of rectangle?
180 degrees
What is the angle of rotation of a rectangle?
180 degrees
Which describes a transformation using rotation?
The centre of rotation, the angle of rotation and, unless the angle is 180 degrees, the direction of rotation.
Why doesn't the direction of rotation clockwise and counterclockwise matter when the angle of rotation is 180?
Because 180 degrees clockwise is the same as 180 degrees counterclockwise.
What are the polygon angle rules?
The sum of the EXTERIOR angles of a polygon is 360 degrees. The sum of the INTERIOR angles of a polygon with n sides is (n-2)*180 degrees. If it is a regular polygon, each interior angle is (n-2)/n*180 degrees.
What polygon's interior angles add up to the same number of degrees as a straight angle?
A straight angle has 180 degrees. A triangle is a polygon whose interior angles add up to 180 degrees.
What is the angle of rotation for a rhombus?
if it's not a square, 180 degrees
What is the angle of rotation of circle and semicircle?
360 degrees and 180 degrees respectively
What is the interior and exterior angle of a regular polygon?
Each exterior angle of a regular polygon with n sides is 360/n degrees. Each interior angle of a regular polygon is 180 - Exterior angle. A direct formula for the interior angle is 180*(n-2)/n degrees.
What is the angle measure for a regular polygon?
The sum of the internal angles of an n-sided polygon is (n-2)*180 degrees. So, for a regular polygon, each internal angle is (n-2)*180/n degrees.
What is the exterior angle 180- sided regular polygon?
It is: 360/180 = 2 degrees
