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Guess the lengths to draw these things. Ask your friend to draw the same. After you make the drawing use a scale to measure the length. Whose drawing showed a better guess?

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Question

Guess the lengths to draw these things. Ask your friend to draw the same. After you make the drawing use a scale to measure the length. Whose drawing showed a better guess?

Guess its length
and draw
Measure of
your drawing
Measure of your
friend’s drawing
An ant of length
less than 1 cm
   
Pencil of length
about 7 cm
   
A glass 11 cm high with
water up to 5 cm
   
A bangle of perimeter
20 cm
   
A curly hair of length
16 cm
   
Chart
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Solution

Guess its length
and draw
Measure of
your drawing
Measure of your
friend’s drawing
An ant of length
less than 1 cm
0.8 cm 1.4 cm
Pencil of length
about 7 cm
6.4 cm 7.2 cm
A glass 11 cm high with
water up to 5 cm
10.5 cm and 4.6 cm 8 cm and 4.5 cm
A bangle of perimeter
20 cm
18.9 cm 20.2 cm
A curly hair of length
16 cm
15 cm 16.6 cm
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