3 years ago

What is the perimeter of a rectangle that is 2m 10cm by 45cm?

1 answer:

6 0

$P=2l+2w\\
l=2\text{ m }10\text{ cm}=210 \text{ cm}\\
w=45\text{ cm}\\\\
P=2\cdot210+2\cdot45\\
P=420+90\\
P=510 \text{ cm}$

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