Question

The length of a ribbon is 65mm.its length in cm is _______.​

Answer 1

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1cm=10mm (Refer the ruler or scale you use)

From this, we can say,

1mm=0.1cm

Hence,

Let 65mm=xcm

Thus,

x=0.1×65

So, x=6.5cm

So, the height of the gram plant is 6.5cm.

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Answer 2

$1 \: mm = 0.1 \: cm$

$let \: 65mm = \: x \: cm \:$

$x = 0.1 \times 65$

$x = 6.5 \: cm$