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How many parallel sides does a right angle triangle have?
None. Triangles do not have parallel sides
Which shapes have a parallel sides?
All regular polygons with an even number of sides. Irregular polygons with an odd number of sides can have parallel sides. There are also non polygonal shapes that can have parallel sides.
Shapes with two parallel sides?
A shape with four or more sides can have two parallel sides.
What shape has two parallel sides and one right angle?
Only trapezium has two parallel sides. Trapeziums can have only two right angles, but not one. Since we need one right angle and two parallel sides, therefore there is no quadrilateral satisfying the condition. But there exist some polygons satisfying the condition. We can draw them by following the condition.
Describe the methods to prove that a quadrilateral is a rectangle?
you can prove any one of these statements to prove that quadrilateral is a rectangle: -- Opposite sides are parallel and any one angle is a right angle. -- Opposite sides are equal and any one angle is a right angle. -- All four angles are right angles. -- Adjacent angles are complementary, and one of them is a right angle. -- Opposite sides are either equal or parallel, and area is equal to the product of two adjacent sides. -- Diagonals are equal.
