The answer is true, by definition, its true.
Answer:
4th set
Step-by-step explanation:
Whole numbers are integers. Integers are any unmber that doesn't have a fraction, decimal, or square root (ex. -3, -2, -1, 0, 1, 2, 3). The only set that has these kinds of numbers is the fourth set.
4.2*10^-2
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Answer would be 110 because if a figure has 4 angles all it's angle lengths add up to 360°, so since one of the angles is 70° and there is another angle that's identical to it, 70+70= 140, so you have to do 360-140 which gives you 220, and 220/2 = 110°