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Mathematics 49 Online
OpenStudy (anonymous):

if wxyz is a parallelogram which of the following statements must be true A angle w is supplementary to angle y B angle w is congruent to y C wxyz is a parallelogram D wxyz is a trapezoid E angle w is a right angle F wx is perpendicular to xy

OpenStudy (anonymous):

i need help

OpenStudy (maheshmeghwal9):

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OpenStudy (maheshmeghwal9):

Opposite sides & opposite angles of a parallelogram are concurrent Adjacent angles of a parallelogram are supplementary.

OpenStudy (maheshmeghwal9):

And one more thing a parallelogram is itself a special type of quadrilateral therefore it can't be any other quadrilateral such as trapezoid or rhombus etc. ok!

OpenStudy (maheshmeghwal9):

Angles of a ||gm aren't right angles 2 obtuse & 2 acute so the lines of ||gm aren't perpendicular too.

OpenStudy (anonymous):

so are the answers a,b, and c

OpenStudy (maheshmeghwal9):

no; only B & C are answers "A" won't be the answer becoz opposite angles are only congruent not supplementary. but remember adjacent angles same as angle "W" & "X" will be supplementary.

OpenStudy (anonymous):

the answer was wrong thanks for your help though

OpenStudy (maheshmeghwal9):

wt do u mean wt are the answers?

OpenStudy (anonymous):

the quiz i was taking said it was a,b,c,e,f

OpenStudy (maheshmeghwal9):

May be ur quiz has considered square & rectangle also as a parallelogram so the answers are abcef but considering parallelogram in a strict way; i mean take ||gm as a special quadrilateral then u will get only b & c as answers take a look @ this http://www.coolmath.com/reference/parallelograms.html

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