70
this is because the bottom line has to equal 180, the angles given, 50 and 60, add up to 110, meaning the missing angle is 70 hope this helps :)
Answer:
9.797. . .
Step-by-step explanation:
2/3 of 144 is 96

3 is the right number in the coordinate pair, hence it it the range.
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R = radius for the semi-circle
The required area is r^2
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Answer:
5
Step-by-step explanation: