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Which type of quadrilateral always has at least three congruent angles?
Wiki User
∙ 12y ago
A rectangle or a square.
Wiki User
∙ 12y ago
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What is one way to determine if a quadrilateral has congruent angles?
If it has at least one set of parallel sides, then at least one set of angles are congruent
What quadrilateral can have four congruent sides and at least two obtuse angles?
a paralelagram
Are Equal angles are always congruent?
the shape? no, not always. but they are always at least similar figures. but the angles alone are always congruent
Does An isosceles triangle contains at least two congruent angles?
Yes. The two base angles (the angles opposite the equal sides) are always congruent.
What type of quadilateral always has at least three congruent angles?
A rectangle.
Which of the following is not a sufficient condition for concluding a quadrilateral is a parallelogram?
at least one pair of opposite sides is parallel
Are the alternate interior angles always congruent?
Adjacent angles of a square? You have to have at least two squares to compare the congruency of angles. Since all the angles of a square equal 90 degrees, adjacent angles of any TWO squares will be congruent. I suggest you look up the definition of CONGRUENT. - wjs1632 -
Is a rhombus acute?
No. Except for the case of a square (a special case of rhombus), a rhombus will have 2 congruent acute angles, and 2 congruent obtuse angles. The square has 4 right angles. In fact, every quadrilateral will have either all 4 angles equal to right angle (square and rectangle), or will have at least 1 obtuse angle (also at least 1 acute).
What is a quadrilateral that is not a rectangle?
Any quadrilateral in which at least one (and therefore at least two) angles are not right angles is not a rectangle. The majority of these do not have a specific name.
Is an isosceles triangle always 45-45-90?
No. The only requirement for a triangle to be a 45-45-90 triangle is for it to have at least two congruent sides/angles. The measure of the two congruent angles can be anything.
Does a trapezoid have at least 2 congruent angles?
No.
Is a quadrilateral with at least one right angle and congruent diagonals a rectangle?
Yes
