Mathematics
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OpenStudy (jiteshmeghwal9):
Give the name of quadrilaterals whose diagonals are perpendicular to each other ?
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OpenStudy (jiteshmeghwal9):
@AccessDenied @Hero help plz :)
OpenStudy (jiteshmeghwal9):
@hartnn plz help :)
OpenStudy (anonymous):
rhombus!!!
OpenStudy (anonymous):
@hartnn u told me remember!!
OpenStudy (jiteshmeghwal9):
ummm......
Really ?
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hartnn (hartnn):
yes...
u only want names or u wanna prove that ?
OpenStudy (jiteshmeghwal9):
I need proof :)
hartnn (hartnn):
do u know simililarity and congruency of triangles?
hartnn (hartnn):
like SAS test, SSS test, ASA test
OpenStudy (jiteshmeghwal9):
congruency only
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hartnn (hartnn):
well, the quadrilaterals are square, rhombus, kite.
which one u wanna start with ?
OpenStudy (jiteshmeghwal9):
square
hartnn (hartnn):
for that u should know some properties of each of them
what all u know about square ?
hartnn (hartnn):
about its sides and interior angles..
OpenStudy (jiteshmeghwal9):
its four angles are of \(90^0\).
its four angles are equal .
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hartnn (hartnn):
i think u meant 'its four sides are equal .' , right ?
OpenStudy (jiteshmeghwal9):
yeah
hartnn (hartnn):
|dw:1352107658609:dw|
u see 4 triangles that go formed when i drew diagonals, choose any 2 of them.
let the centre be O.