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Q: What does a rectangle must equal?

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All four angles of a rectangle must equal 90 degrees each.

Isosceles trapezoid and rectangle

Every rectangle must have corners otherwise it would not be a rectangle!Every rectangle must have corners otherwise it would not be a rectangle!Every rectangle must have corners otherwise it would not be a rectangle!Every rectangle must have corners otherwise it would not be a rectangle!

A rectangle is, by definition, a parallelogram with four equal angles, all of which equal 90 degrees. If you only know three angles in a rectangle, something is wrong. In order to find the area of a rectangle, you must know its height and length. The area is then found by multiplying these two values together.

No. A rectangle has two pairs of equal sides. A rhombus has all four sides equal.

Related questions

Opposite sides of a rectangle must always be equal.

It is a rectangle

Sides of equal length.

No. A square must have all four sides equal. A rectangle need not.

All four angles of a rectangle must equal 90 degrees each.

Rectangle and Isosceles Trapezoid

Isosceles trapezoid and rectangle

They must not all be equal.

True, a square can be classified as a rectangle - a rectangle must have 4 - 90° angles and it CAN have 4 equal sides. A rectangle cannot be classified as a square.

When all the vertices of a plane quadrilateral are exactly equal to 90 degrees it is is called a rectangle and, if all its sides are of equal length, that rectangle is called a square. So when a plane quadrilateral has all its vertices exactly equal to 90 degrees, but it does not have all its sides equal in length, it must be a rectangle but not a square.

negative reciprocal slopes

A square or a rectangle both have 4 equal interior angles of 90 degrees

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