Answer:
no
Explanation:
Pythagoras
28² = 20² + 19²
784 = 400 + 361
784 = 761 (F)
is not a right triangle
No
plug the numbers into Pythagorean theorem
c^2 =a ^2 + b^2
28^2 = 20^2 + 19^2
784 = 400+361
784 = 761
No its not
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