ABCD is a trapezium in which AB parallel to DC and AB= 2DC. Determine the ratio of the areas of triangle AOB and triangle COD .
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Step-by-step explanation:
angle AOB = angle COD (V.O.A)
angle OAB = angle OCD (CORRESPONDING ANGLE )
by AAS criterion
triangle AOB - triangle COD
area of triangle AOB / area of triangle COD
=AB²
DC²
area of triangle AOB / area of triangle COD
=(2DC)²/(DC)² = 1/4
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