A polygon is any figure sided with three sides and above such that triangle (3) is the smallest polygon. A nonagon is a polygon with 9 sides. To get the sum of interior angles of a polygon we use the formula;
(n-2) 180 or (n-4)90 where n is the number of sides.
Therefore, for a nonagon the sum of interior angles = (9-2) 180 = 1260 degrees
If we add all the angles we should get 1260, considering the remaining angles to be each x
Thus 138+154 +145 +132 +128 +147 +130 + x +x =1260
= 974 + 2x = 1260
= 2x = 286
= 143
therefore, each of the other angles was 143
Answer:
29
Step-by-step explanation:
<u>Answer:</u>
It would be 81
<u>Step-by-step explanation:</u>
is the same as 9 times 9. And 9 times 9 is 81.
Answer:
1: 2: √3
Step-by-step explanation:
What is the ratio of the sides of triangle XYZ?
The sides of a triangle, where the angles are 30o, 60o, and 90o, are in ratio: 1: 2: √3
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