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What is the difference between an isosceles trapezoid and an isosceles triangle?
An Isosceles trapezoid has four sides (is a quadrilateral) with a pair of parallel sides and the other two sides of equal length; whereas An isosceles triangle has three sides with a pair of sides of the same length and the other side a different length.
How many pair of parallel lines is equilateral triangle?
None. A triangle (not even an equilateral one) has no parallel sides.
What type of Quadrilateral has exactly one pair of parallel sides?
Trapezoids have only one pair of parallel sides.
If orthocentre and circumcentre of a triangle coincide then is it an equilateral triangle?
Yes. The orthocenter is the intersection of the altitudes; the circumcenter is the intersection of the perpendicular bisectors of the three sides of the triangle. The perpendicular bisector of and altitude to a given side are parallel, so they can coincide at the common center only if they are the same; that means that the opposite vertex is on the perpendicular bisector, so the other two sides are equal. Thus each pair of sides are equal, so the triangle is equilateral.
Do all trapezoids have exactly one pair of congruent sides?
By definition, a trapezoid only must have exactly one pair of parallel sides. An isosceles trapezoid does have one pair of congruent sides, but not all trapezoids will have exactly one pair of congruent sides.
Is a trapezium a regular polygon?
No because it has 1 pair of parrell sides
A quadrilateral with exactly 1 pair of parrell sides and exactly 1 pair of congruent sides?
This quadrilateral is a trapezoid. In a trapezoid, one pair of opposite sides is parallel, and one pair of opposite sides is congruent. The other two sides are not parallel or congruent.
What quadrangle has 1 pair of parrell sides and two right angles?
Assuming that parrell is a weird way of writing parallel, it would be a right trapezium (right trapezoid in the US).
What does not have a pair of parallel sides?
A triangle.
What triangle must have a pair of perpendicular sides?
A right triangle.
Does an equilateral triangle have one pair of parallel sides?
It is impossible for a triangle to have any parallel sides. ■
Triangle with no pair of congruent sides?
Scalene
What is the name for a quadrilateral with 3 equal sides and only one pair of parallel sides?
i am not really sure but i think it is the isosceles triangle
Does a obtuse triangle have any equal sides?
It can have a pair of equal sides.
What shape has one line of symmetry and only one pair of adjacent sides equal?
An isosceles triangle.
What shapes have at least one pair of perpendicular sides?
Any shape, other than a triangle can have a pair of perpendicular sides.
How do you find if the lengths of a shape make a triangle?
If (and only if) the length of each pair of sides is greater than the third side, then it is possible to make a triangle.
