How can the height of a person who is six feet tall be expressed (approximately) in nanometres?
- (a)183 × 10⁶ nanometres
- (b)234 × 10⁶ nanometres
- (c)183 × 10⁷ nanometres
- (d)234 × 10⁷ nanometres
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Official answer(c) 183 × 10⁷ nanometres