Question

Ravi wishes to measure the perimeter
of some shapes but can find only a
centimetre ruler with the ends broken
off. How can Ravi use a broken
ruler to measure the perimeters of
the shapes?​

Answer 1

Answer:

by using the scale again till the end of the broken part

Explanation:

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Answer 2

when the edges of the ruler are broken, Ravi need to count the exact measure of the length broken and subtract from the total length

now he will be able to measure. 3xactly

example

15 cm ruler is there in which 2 edges are broken with 1 cm each

so he should take 1 cm mark as 0 and measure from 13 cm