Question

What is the area of a wall of length 18 m and breadth 12 m? Also find it's perimeter.
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Answer 1

length=18m

breath=12m

area=length×breath

18×12

216m^

perimeter=2(length+breath)

2(18+12)

2×30

60m

Answer 2

$length = 18m \\ breadth = 12m \\ \\ area = l \times b \\ = 18 \times 12 \\ = 216 {m}^{2} \\ \\ perimeter = 2(l + b) \\ = 2(18 + 12) \\ = 2 \times 30 \\ = 60 {m}^{2}$