<h3>
Answer: Choice A. </h3><h3>
interior = 140, exterior = 40</h3>
===================================================
Explanation:
For me, I find it easier to find the exterior angle first. For any convex polygon, the sum of the exterior angles is 360 degrees. When we talk about regular polygons with n sides, each exterior angle is 360/n degrees. In this case, we have a nonagon with 9 sides. So n = 9 is plugged into 360/n to get 360/9 = 40 as the exterior angle measure
exterior angle = 40
We could stop here since we can see the answer must be choice A. But let's keep going. To get the interior angle, we subtract the result we got from 180
interior angle = 180-(exterior angle) = 180-40 = 140
This is because any adjacent pair of interior and exterior angles must form a straight angle of 180 degrees.
--------------------
side note: you could use the formula to find the measure of the interior angle.
Since the lengths are consecutive odd numbers and the perimeter of the triangle is 51cms. Let x be the unknown length.
so 3x=51 ; x=17 . now the sides can be 15cms, 17cms, 19cms.
check Add them up it is 51cms which is the perimeter and the consecutive odd numbers
Answer:
the answer is 1
Step-by-step explanation:
anything to the 0th power is 1
<span>es, it does. If the data are sample data, than the divisor is N. If the data are the entire ... If the data are sample data, than the divisor is N. If the data are the entire population, than the ... does it matter whether the data are sample data or data comprising the entire .... What does the </span>