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45 votes
45 votes
A triangle has vertices on a coordinate grid at E(-8,3), F(8,3), and G(8, – 7).What is the length, in units, of EF?

User Onkar Nene
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1 Answer

27 votes
27 votes

1) To calculate it the length, let's use the distance formula for EF

where we pick the coordinate of E(-8,3) and F(8,3) and plug it into this formula derived from the Pythagorean Theorem

So,


d_(EF)=√((3-3)^2+(8-3)^2)=5

2) So the length of EF is 5 units

User Shooting Stars
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