A polygon has an interior angle sum of 9000. How many sides does it have
1 answer:
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Answer:
Explanation:
Let's begin writing down everything
(X×(-11)+5)×(-9)+X-55
Now we can multiply
-9(-11X+5)+X-55
99X-45+X-55
And so we get
100X-100
Factorize 100
100(x-1)
Using the factor label method, you would set up your ratio like so: