abcd is a rhombus.find X,y,t
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Step-by-step explanation:
t=90° diagonals of the rhombus bisect each other at 90°
angle tcd=30° because of straight angle
angle tdc=60° because 90+30+60
angle aoy=90°
angle oay=30° alternate angle
angle y=60°
triangle aod=triangle doc
so we will prove these triangle congruent
line do is common (1)
as line db bisect ac forming equal sides.(2)
angle 90 degree common(3)
hence proved aod=doc
so x=30°by cpct
hope it helps......
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