Answer:
The answer is 116
Step-by-step explanation:
Because this shape is a quadrilateral, so the sum of the angles of a quadrilateral is a total of 360 degrees. So i added 90 + 90 + 64 = 244. And 360 - 244 = 116.
D) a.b > 0 is the wrong answer
Not 100% sure this is right but
60cm^2
The solution is the interval b is in ]11.3, infinity[
Answer:
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