Page 146 - Revised Maths Wisdom Class - 2

144 MATHS

We have learned about length, weight and capacity in our previous class.
Let us learn more.

Measuring Length

We can measure the length of objects by using our body parts.

A handspan A cubit A footspan A pace

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Handspan, cubit, footspan and pace are called the non- standard units of length.
These units vary from person to person.

We use a handspan, a cubit, a footspan a pace to measure length. But, these units

are not accurate because we all have different size of hands and feet.

To get an accurate measurement, we need a standard unit. We measure length in
metres and centimetres. We use a metre stick or a ruler to measure the length.

Centimetre

Small lengths are measured in centimetres.
Centimetre is written as cm.

A ruler has centimetre marks on one side.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
cm
Metre 0 inch 1 2 3 4 5 6

Bigger lengths are measured in metres and we use
a measuring tape for this. Metre is written as m. R
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1 m = 100 cm

18 cm 3 m