130.
Since angle 1 and 5 equal 100 each angle is 50. Since 1 and 3 are supplementary subtract 180 and 50
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K^8 • K^9 = K^(8+9) = K^17
Perimeter is 36. This is because the radius and side lengths are the same in a regular hexagon.
Are is roughly 93.53.
What is the full question ?
