標題:
f.2 maths 1題20分
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find the size of each interior angle of a regular 45-gon
最佳解答:
The size of each interior angle of a regular 45-gon = 180°(45-2) / 45 = 172° By using the formula: 180°(n-2)/n, where n is the number of sides of a regular polygon.
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