In the figure, the area of parallelogram $A B C D$ is
(a) $A B \times B M$
(b) $\mathrm{BC} \times \mathrm{BN}$
(c) $D C \times D L$
(d) $A D \times D L$
Thinking Process
Use the formula, area of parallelogram =B asex Altitude to get the required result
(c) We know that, area of parallelogram is the product of its any side and the corresponding altitude (or height).
Here, when AB is base, then height is DL.
Area of parallelogram = AB x DL and when AD is base, then height is BM.
Area of parallelogram = AD x BM When DC is base, then height is DL.
Area of parallelogram = DC x DL and when BC is base, then height is not given.
Hence, option (c) is correct.
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