<span>you know the measure of AC that is 4 and the measure of AB that is 4. Then you do the theorem of Pythagoras 4 squared + 4 squared = hypotnuza (CB)
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then + all sides
I think it’s c I had this question lol
71 * 4 = 284
The answer is 284
Answer:

Step-by-step explanation:



because it's a straight angle(180)
He is at 70 feet above sea level. -30+100 is 70.