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# What Are Congruent Circles?

Two objects are congruent if they have the same shape, dimensions and orientation. Congruent circles are circles that are equal in terms of radius, diameter, circumference and surface area. Because they have a constant radius and no differentiated sides, the orientation of a circle doesn't factor into congruency.

Continue ReadingAny circles that have the same radii can be overlaid perfectly on one another.

More complex objects have to meet more parameters to be congruent. Polygons must have the same number of sides arranged in the same shape with the same dimensions and must be oriented the same way. Even if two rectangle have the same dimensions and shape, if one is oriented horizontally and the other vertically, they are not congruent.

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## What Is a Polygon Called Where All Sides Are Congruent?

A: A polygon that has all sides congruent is called a "regular polygon." Regular polygons must also have all angles congruent, which is a side effect of havin... Full Answer >Filed Under: -
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## What Is a Parallelogram With All Sides Congruent Called?

A: A parallelogram with all sides congruent is called a rhombus. All the sides of a rhombus are equal in length, which is why it is also called an equilateral... Full Answer >Filed Under: -
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## What Is the Correct Theorem for Proving That Triangles Are Congruent?

A: Four different methods for determining triangle congruency by examining sets of sides and angles exist: SSS (side, side, side), SAS (side, angle, side), AS... Full Answer >Filed Under: -
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## What Are the Dimensions of a 2x4?

A: A 2x4 piece of lumber is actually 1 1/2 by 3 1/2 inches. Wood shrinks when it dries, so lumber mills adjust the milling process to achieve a standardized s... Full Answer >Filed Under: