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43 votes
43 votes
On a coordinate plane, DEF has vertices D(1,2), E(7,2)and F(1,9). What is the distance between point E and F?

User Samrat Patil
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1 Answer

18 votes
18 votes

Explanation:

Using distance formula,

Let the distance between point E and F = ef,


ef = \sqrt{{(7 - 1)}^(2) + {(2 - 9)}^(2) } \\ ef = √(85) \\ = 9.219544457

User Caribbean
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