in a parallelogram ABCD(fig .5) AB= 27 cm ,BC=18 cm ,AL
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Step-by-step explanation:
AB=DC=27cm[opposite sides of the llgm]
BC=AD=18cm[opposite sides of the llgm]
ar(ABCD)= base ×height
=27×18
=486cm²
ar(ABCD)=AL×27
486=AL×27
AL=18cm[486 divided by 27]
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