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Mathematics 9 Online
cidneyf123:

Which description does NOT guarantee that a quadrilateral is a rectangle?

sammixboo:

Do you have any answer choices? :) And welcome to QuestionCove!

cidneyf123:

a parallelogram with congruent sides a quadrilateral with four right angles a quadrilateral with all congruent angles a quadrilateral with diagonals that are congruent and bisect each other

sammixboo:

So we know what a rectangle looks like and what it needs to be classified as a rectangle. Do you know of any choices we can eliminate based on what we already know about rectangles?

ramen:

what are some key words in each of these choices?

ramen:

so far we have congruent, bisect, parallelogram, right angles, quadrilateral

darkknight:

so the answer is A parallelogram with all congruent sides could be like this. |dw:1589334385962:dw|

darkknight:

And that is not a rectangle. Read through the other answer choices and you can find that you are able to eliminate them

ramen:

but yea, if all sides are congruent, it can't be a rectangle

darkknight:

That is not true ramen It could be like this |dw:1589334518983:dw| Which would be a square. Squares are rectangles

cidneyf123:

thank you guys.. much much help!!!

sammixboo:

Feel free to ask another question and tag us if you need any further help :)

darkknight:

yep :)

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