Find the distance between (2,4) and (12, 9) on a coordinate plane. round to the nearest tenth if necessary. *

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19-01-2018
Mathematics

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Find the distance between (2,4) and (12, 9) on a coordinate plane. round to the nearest tenth if necessary. *

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gustanika gustanika · Answer 1 · 2018-01-19T10:22:41+01:00

gustanika gustanika

19-01-2018

Use pythagoras

d = √(Δx² + Δy²)
d = √(12-2)² + (9-4)²
d = √(10² + 5²)
d = √(100 + 25)
d = √125
d = 5√5
d = 5 × 2.236
d = 11.18

The nearest tenth is 11.2, so the distance is near to 11.2

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