Triangle ABCABCA, B, C has the following vertices: A(1,9)A(1,9)A, left parenthesis, 1, comma, 9, right parenthesis
B(11,-7)B(11,−7)B, left parenthesis, 11, comma, minus, 7, right parenthesis
C(-9,3)C(−9,3)C, left parenthesis, minus, 9, comma, 3, right parenthesis
Is triangle ABCABCA, B, C a right triangle, and why?

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66answer:

step-by-step explanation:

853.3

step-by-step explanation:

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c

english maybe i can ..