Diagonals of a parallelogram are 2,hat{i} and 2hat{j}. area of parallelogram......... units

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3-1.Vectors

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The diagonals of a parallelogram are $2\,\hat i$ and $2\hat j.$What is the area of the parallelogram.........$units$

A

$0.5$

B

$1 $

C

$2$

D

$4$

Solution

(d)Area $ = \left| {\,2\hat i \times 2\hat j\,} \right|$$ = \left| {4\hat k} \right|$$ = 4\,\,unit.$

Standard 11

Physics

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