yachtboy1917
20.01.2020 •
Mathematics
By definition, a rectangle is a four-sided figure with four right-angle corners. which of these expresses this definition as a biconditional statement?
a .a quadrilateral is a rectangle iff it has four 90º angles.
b. once a quadrilateral has four 90º angles it has become a rectangle.
c. quadrilaterals are rectangles when they have four 90º angles.
d. a rectangle is a quadrilateral with four 90º angles.
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Ответ:
I think its = (1 1/6) (x)
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