0
yea an isosceles has perfect angles
45-45-90, thus meaning congruent.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How do you prove that the diagonals of an isosceles trapezoid are equal?
Let's draw the isosceles trapezoid ABCD, where AD ≅ BC, and mADC ≅ mBCD. If we draw the diagonals AC and BD of the trapezoid two congruent triangles are formed, ∆ ADC ≅ ∆ BDC (SAS Postulate: If two sides and the angle between them in one triangle are congruent to the corresponding parts in another triangle, then the triangles are congruent). Since these triangles are congruent, AC ≅ BD.
Are the diagonals of a trapezoid congruent?
Yes, the diagonals of a trapezoid are congruent.Another Answer:-The diagonals of a trapezoid are congruent only when it is in the form of an isosceles trapezoid.
The diagonals of an isosceles trapezoid are not congruent?
False
Do the diagonals of a trapezoid bisect each other?
No, never. A trapezoid may have diagonals of equal length (isosceles trapezoid), but they do not intersect at their midpoints.Draw the diagonals of a trapezoid, for example, an isosceles trapezoid, thereby creating 4 triangles inside the trapezoid. Now assume the diagonals do bisect each other. The congruent corresponding sides of the top and bottom triangles with the included vertical angle would make the triangles congruent by the side-angle-side theorem. But this is a contradiction since the respective bases of the triangles, forming the top and bottom of the trapezoid are, of course, not equal. Therefore, the triangles cannot be congruent. Hence, we have given proof by contradiction that diagonals in a trapezoid cannot bisect each other.
What is a quadrilateral with congruent diagonals?
An Isosceles Trapezoid, Rectangle, or a Square.
What is congruent diagonals each of which divides the figure into two congruent isosceles right triangles?
what is the congruent diagonals each of which divides the figure into two congruent isosceles right triangles
Are the diagonals of an isosceles always congruent?
If you mean an isosceles triangle then no because all triangles have no diagonals
How do you prove the diagonals of an isosceles triangle congruent?
You can't because triangles do not have diagonals but an isosceles triangle has 2 equal sides
Are the diagonals of an isosceles triangle congruent?
Yes, the diagonals of an isosceles triangle are congruent. This is because an isosceles triangle has two sides that are equal in length, which creates two congruent triangles when the diagonals are drawn.
What is a trapezoid with congruent diagonals?
A trapezoid with congruent diagonals is an isosceles trapezoid.
How do you prove that the diagonals of an isosceles trapezoid are equal?
Let's draw the isosceles trapezoid ABCD, where AD ≅ BC, and mADC ≅ mBCD. If we draw the diagonals AC and BD of the trapezoid two congruent triangles are formed, ∆ ADC ≅ ∆ BDC (SAS Postulate: If two sides and the angle between them in one triangle are congruent to the corresponding parts in another triangle, then the triangles are congruent). Since these triangles are congruent, AC ≅ BD.
In this isosceles trapeziod what is congruent to JG?
The diagonals of an isosceles trapezoid are congruent in lengths
Are diagonals of any trapezoid are congruent?
Only the diagonals of isosceles trapezoids are congruent.
Are all quadrilaterals with congruent diagonals parallelpgram?
No. An isosceles trapezium (isosceles triangle with its apex removed) would have congruent diagonals but it is not a parallelogram.
Are the diagonals of a trapezoid congruent?
Yes, the diagonals of a trapezoid are congruent.Another Answer:-The diagonals of a trapezoid are congruent only when it is in the form of an isosceles trapezoid.
Are the diagonals of trapezoid congruent?
Yes, the diagonals of a trapezoid are congruent.Another Answer:-The diagonals of a trapezoid are congruent only when it is in the form of an isosceles trapezoid.
The diagonals of an isosceles trapezoid are not congruent?
False
