coordinate geometry..

Geometry Level 3

The diagnols of parallelogram PQRS are along the lines x+3y=4 and 6x-2y=7. Then PQRS must be -

rhombus square cyclic quadrilatral rectangle

Ashish Nagpal by Ashish Nagpal , 24, India

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2 solutions

Slope of first diagonal = -1/3............. Slope of second diagonal = 3........... Since the product of slopes = -1,diagonals are perpendicular & rhombus have diagonals that are perpendicular.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Very good ,,,,,

Jayakumar Krishnan - 6 years, 10 months ago
Don Rodrigues
Jun 2, 2014

Diagonal of rhombus is not same

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Nothing was said about the lengths of the diagonals.

Guiseppi Butel - 7 years ago

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