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'Work out the length of the line segment PQ. Give your answer correct to 3 significant figures.'
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'Work out the length of the line segment PQ.

Give your answer correct to 3 significant figures.'

'Work out the length of the line segment PQ. Give your answer correct to 3 significant-example-1
User Stoycho Andreev
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8.6k points

1 Answer

4 votes
The length is:

the square root of [ (the difference in 'x' values)² + (the difference in 'y' values)² ]

D = √ [ (-2-6)² + (5-2)² ]

= √ [ (-8)² + (3)² ]

= √ (64 + 9) = √75 = 5√3 = 8.66 (rounded to 3 sig-figs)
User Mohamed Samsudeen
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