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1. |
A sufficient condition that a triangle T be a right triangle is that a2 + b2 = c2. An equivalent statement is |
A. | If T is a right triangle then a2 + b2 = c2. |
B. | If a2 + b2 = c2 then T is a right triangle. |
C. | If a2 + b2 6= c2 then T is not a right triangle. |
D. | T is a right triangle only if a2 + b2 = c2. |
Answer» C. If a2 + b2 6= c2 then T is not a right triangle. | |