Step by step explanation :
❃ [tex] \underline{ \underline{ \sf{Given} }}: [/tex]
- Base length ( b ) = 21 cm
- Vertical height ( h ) = 9 cm
- Slant height = 12 cm { Ignore the slant height as it is not required while finding the area }
❃ [tex] \underline{ \underline{ \sf{To \: find}} }: [/tex]
- Area of the given parallelogram
✑ [tex] \bold{ \red{ \boxed{ \sf{Area \: of \: a \: parallelogram \: = bh}}}}[/tex]
Substitute the known values :
⇝ [tex] \sf{21 cm \times 9 \: cm}[/tex]
⇝ [tex] \boxed{ \bold{ \sf{189 \: {cm}^{2} }}}[/tex]
☥ [tex] \boxed{ \boxed{ \tt{Our \: final \: answer : \bold{ 189 \: {cm}^{2} }}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ツ
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