A triangle 6

A triangle has vertices on a coordinate grid at H(-2,7), I(4,7), and J(4,-9). What is the length, in units, of vector HI?

Correct answer:

h =  6

Step-by-step explanation:

H=(2,7) I=(4,7) J=(4,9)  h=dist(I,H)=IH=(IxHx)2+(IyHy)2=(4(2))2+(77)2=6

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Tips for related online calculators
Our vector sum calculator can add two vectors given by their magnitudes and by included angle.
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The Pythagorean theorem is the base for the right triangle calculator.
See also our trigonometric triangle calculator.

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