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1.which of the following theorems is NOT true?
A.If a parallelogram has one right angle,then if has four right angles,therefore the parallelogram is a rectangle
B.Diagonals of a rectangle from perpendicular
C.Diagonals of a square are congruent
D.Diagonals of a rhombus form perpendicular​


Sagot :

• Question:

Which of the following theorems is NOT true?

A. If a parallelogram has one right angle, then if has four right angles, therefore the parallelogram is a rectangle.

B. Diagonals of a rectangle from perpendicular.

C. Diagonals of a square are congruent.

D. Diagonals of a rhombus form perpendicular.

• Answer:

The answer is Letter B.

Choices A, C and D are true. Letter B is a false statement. Rectangles, parallelograms and trapeziums have diagonals that are not perpendicular compared to square and rhombus.

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