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HELP PLZZZZZZZZZZZZZZZ ILL GIVE BRAINLIEST!!!!!!!!!!!!!!!! What is the length of  EF ¯ ¯ ¯ ¯ ¯ ?   Round to the nearest tenth of a unit. A. 3.0 units B. 3.6 units C. 6.4 units D. 7.2 units

HELP PLZZZZZZZZZZZZZZZ ILL GIVE BRAINLIEST What is the length of EF Round to the nearest tenth of a unit A 30 units B 36 units C 64 units D 72 units class=

Respuesta :

D = square root [(x2−x1)^2+(y2−y1)^2]
D = square root [(5−1)^2+(6−1)^2]
D = square root [4^2+5^2]
D = square root [16+25]
D = square root [41]
D = 6.4

answer is C. 6.4 units

Length of EF is 6.4 units

Given that;

Co-ordinate of E = (1,1)

Co-ordinate of F = (5,6)

Find:

Length of EF

Computation:

Distance between two points = [tex]\sqrt{(x1 - x2)^2 + (y1-y2)^2}[/tex]

Length of EF = [tex]\sqrt{(5-1)^2 + (6-1)^2}[/tex]

Length of EF = [tex]\sqrt{16 + 25}[/tex]

Length of EF = 6.4 units

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