Answer:
15/3
Step-by-step explanation:
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Any kind of Triangle must have 180 degree of angle in total if it is not, then it is not a Triangle.
In short, Your Answer would be Zero
Hope this helps!
Answer:
81pi
Step-by-step explanation:
You are asking yourself the area of pi*r^2 could with r as 9. pi*9^2. solve and you get 81pi :D