1, Find the value of n if each interior angles of a regular n-sided polygon is 150° x n.
2, Find the value of n if each interior angles of a regular n-sided polygon is larger than its exterior angled by 132°.
F.2 maths questions! Help me p
2013-06-04 5:49 am
回答 (1)
2013-06-04 7:19 am
✔ 最佳答案
1 180 * (n - 2)/n = 150180n - 360 = 150n
30n = 360
n = 12
2 Let the interior angle is x, then exterior angle is x - 132
x + x - 132 = 180
x = 156
The exterior angle is x - 132 = 24
So, n = 360/24 = 15
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