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A perfect square

Four 90 degree angles and four equal sides

Q: What plane figure has 4 sides of equal length and 4 right angles?

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square

A square is a plane geometric figure having 4 equal sides and 4 right angles.

A regular polygon is a plane figure with equal sides and equal angles.

A regular polygon (a closed plane figure of straight lines) has all equal angles and all equal side lengths. For example, a square is a regular quadrilateral, because it's four edges are all the same length, and it's angles are all equal (90 degrees). A regular triangle is an equilateral triangle.An irregular polygon does not have equal sides and angles. N.B to be regular, a polygon must have both equal sides and equal angles. If a polygon has equal sides but unequal angles it is not a regular polygon.

A hexagon has six sides and six angles.

Related questions

A rhombus has 4 equal sides with 2 equal acute angles and 2 equal obtuse angles

Triangle is plane with three sides and three angles. The sum of its inside angles is equal to 180 degrees.

square

A sguar.

equilateral parallelogram

square or rhombus

a plane figure having six sides is a hexagon

A rectangle is a plane figure with four straight sides and four right angles, esp. one with unequal adjacent sides. A square is a plane figure with four equal straight sides and four right angles. A rhombus is a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides.

A square is a plane geometric figure having 4 equal sides and 4 right angles.

A regular polygon is a plane figure with equal sides and equal angles.

If you mean EQUAL sides and angles, than an equilateral triangle.

A rectangle is a quadrilateral, which is a plane figure bounded by four straight sides. Both opposite pairs of sides are equal in length and all four vertices are right angles.