Question

find the area whose length and breadth are 400mm and 8cm​

Answer 1

Answer:

$\color{black}\boxed{\colorbox{saffron}{1cm=10mm}}$

8 cm =80mm

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Area-

$\color{black}\boxed{\colorbox{saffron}{Area - length×breadth}}$

$= 400 \times 80 \\ \\ = 32000 {mm}^{2}$

Answer 2

Answer:

area = length × breadth

= 40cm × 8cm

=320 cm2

(1mm =1cm

400 mm =40cm