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Earn +20 ptsQ: What is the four right angles theorem?
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Continue Learning about Algebra
What is a counterexample for a square with four right angles?
A square, by definition, must have four right angles. A plane shape with 4 right angles which is not a square is a rectangle.
What is a regular quadrilateral with four right angles?
square
A parallelogram with four right angles is?
Rectangle and square
Does a parallelogram have four right angles?
Not necessarily. A parallelogram is a quadrilateral with 2 sets of 2 parallel sides. Only rectangles and squares have right angles as all four angles - a rectangle is a "special" parallelogram that has all four angles equal; a square is a "special" rectangle that has all four sides of equal length.
How many right angles do perpendicular lines make?
Perpendicular lines make four 90 degree angles otherwise known as right angles.
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