Question

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?

Answer 1

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`