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The length of a pole is 42.3 m. Find the...

The length of a pole is 42.3 m. Find the number of significant figures, when its length is expressed in kilometres.

A

2

B

3

C

1

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
The length of a pole is `42.3 m = 0.0423` km, number of significant figures is 3.
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