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Because that is how the rectangle is defined. If it doesn't have such angles, it isn't a rectangle.

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12y ago
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Q: Why does a rectangle have 90 degree angles?
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Related questions

What angles does a rectangle have?

Four 90 degree angles.


What is a degree of a rectangle?

Rectangles have 90 degree angles.


Is a crossed rectangle a rectangle?

crossed rectangle is not a rectangle, rectangle have to have 90 degree angles.


How many equal angles are in a rectangle?

A rectangle has 4 interior 90 degree angles


What type of angles does a rectangle have?

It has 4 90 degree angles.


What four angles does a rectangle have?

All 4 angles are 90 degree angles.


Does A Rectangle Have 4 Equal Angles?

Yes. All corners of a rectangle have 90 degree angles.


Does a rectangle have acute sides?

No, a rectangle has 90 degree angles, also known as right angles.


A quadrilateral with four 90-degree angles?

A rectangle.


Is a rhombus and a rectangle same?

No, a rectangle must have 4 90 degree angles


What is a quadrilateral with four 90-degree angles?

A square and a rectangle


A quadrilateral with four 90 degree angles?

A square or a rectangle