Here is a simple-looking visual trick challenges your perception of two lines. What you see may surprise you, revealing how ...
Parallel lines are lines that never cross each other - they keep the same distance apart from each other. When two lines intersect, the opposite (X) angles are equal. On parallel lines, alternate (Z) ...
Two identical 2D shapes are said to be congruent. Two 2D shapes that share the same proportions are similar. The angles and side lengths can help us decide which type they are. Some examples of ...
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