A regular polygon with an interior angle sum of 9000°? If so, what is it?
1 answer:
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Answer:
Step-by-step explanation:
⟾Collect like terms
- 8x - 10x = x - 45
⟾Move the variable to the left
- - 2x = x - 45
⟾Collect like terms again
- - 2x - x = - 45
⟾Divide both sides by -3
- - 3x = - 45
⟾ x = 45 ÷ 3
- x = 15.
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