Which of the following can be used to construct a triangle? A) 30 40 90 degrees
B) 120 52 98 degrees
C) 100 25 55 degrees
D) 80 80 80 degrees

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  C)  100 25 55 degrees

Step-by-step explanation:

The sum of the angle measures must be 180°.

  A: 30 +40 +90 = 160

  B: 120 +52 +98 = 270

  C: 100 +25 +55 = 180 . . . . these form a triangle

  D: 80 +80 +80 = 240

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step-by-step explanation:

i would be 2,000 just get the square root of 50 which is 2500 and the divid 4/5 and last thing multiply the answer you get for that by the square root of 50

step-by-step explanation: