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Q: Are all the interior angles of a pentagon equal?

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A pentagon with 3 right angles is considered to be an irregular pentagon because not all angles and all sides are equal.

For a figure to be regular, all its sides and angles must all be congruent. So if a pentagon is regular, all of its sides and angles are equal to each other.

Triangle has 3 sides, 3 vertices (corners) whose interior angles add up to 180. Octagon has 8 sides, 8 vertices, whose interior angles add up to 1080 degrees. A regular triangle (all sides equal, all angles equal), has interior angles of 60 degrees. A regular octagon (all sides equal all angles equal), has interior angles of 135.

Equilateral just means equal sided. An equilateral pentagon is therefore a pentagon with all its sides of equal length. If an equilateral pentagon is also an equal-angled pentagon then it is called a regular pentagon.

Because a pentagon has 5 angles and all must be equal, you can divide the total degrees (360) by the number of sides (5) to get the degrees per angle. 360 / 5 = 72 degrees per angle.

Related questions

All five interior angles of a pentagon always add up to 540 degrees, but there'sno way to tell what each one is.In a regular pentagon, every interior angle is 108°.

Pentagons don't have to have equal sides. The definition of a pentagon is simply a polygon with 5 sides and 5 interior angles. This means that as long as some shape has 5 sides and 5 interior angles (not necessarily all equal), then it is a pentagon.

A pentagon is a 5-sided polygon. A regular pentagon has all sides of equal length and all interior angles are equal, each measures 108°.

A pentagon doesn't have to have any acute interior angles.It can have as many as 4 of them, but it can'thave 5.A regular pentagon has all five of its angles equal to 108° each.

A pentagon with 3 right angles is considered to be an irregular pentagon because not all angles and all sides are equal.

A Pentagon has 5 angles. It can have 0, 1, 2, 3 or all 5 equal.

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.

The interior angles of any regular pentagon, no matter the size, are all obtuse.

That all interior angles are equal in size.

A pentagon can have anywhere from none to three right angles. For a pentagon to have any right angles however, it has to be uneven, because the sum of all interior angles of a pentagon always equals 540 degrees.

If all of its interior angles are equal then it is a regular polygon

All five of the angles inside a pentagon add up to 540 degrees.If the pentagon is regular, then each interior angle is 108 degrees.

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