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Mathematics 17 Online
OpenStudy (anonymous):

Check me and help me please!!! Medal and fan will be given!!!!!!!

OpenStudy (anonymous):

OpenStudy (richyw):

first is 1, second is 3

OpenStudy (richyw):

Aquadrilateral is a square if and only if it is any one of the following: a rectangle with two adjacent equal sides a quadrilateral with four equal sides and four right angles a parallelogram with one right angle and two adjacent equal sides a rhombus with a right angle

OpenStudy (anonymous):

So I was right?

OpenStudy (phi):

yes

OpenStudy (phi):

but your reason for question 2 is not the best. I would say rectangles are in the quadrilateral family

OpenStudy (anonymous):

1 is the third choice and 2 is the 1st choice?

OpenStudy (phi):

Question 1 is the first choice (just like you said) Question 2 is the 3rd choice: all rectangles are quadrilaterals

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