if a cone of a rohmbus is 60°. then,The ratio of the length of the diagonal is ??
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In Rhombus apposite angles are equal.
∠DAB=∠DCB=60∘
∠ADC=120∘
∠ADB=2120∘=60∘
In △ADB=∠ADB=∠ABD=∠BAD=60∘
AD=AB=BD=a
since it is equilateral △
DM=21BD=2a
In △DMC by applying pythagorous.
DM2+CM2=CD2
CM2=a2−4a2=43a2
CM=23a
AC=2CM
AC=2×23a=3
Step-by-step explanation:
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