Answer: 18.25 in change
Step-by-step explanation: 20.00 minus 1.75 = 18.25
Answer:
The polygon has 9 sides
Step-by-step explanation:
we know that
A regular polygon has equal length sides and equal interior angles
step 1
Find the measure of the interior angle
Remember that
The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)
Let
x ----> the measure of each interior angle in the regular polygon
so
![x+40^o=180^o](https://tex.z-dn.net/?f=x%2B40%5Eo%3D180%5Eo)
solve for x
![x=180^o-40^o=140^o](https://tex.z-dn.net/?f=x%3D180%5Eo-40%5Eo%3D140%5Eo)
step 2
Find the number of sides of the regular polygon
we know that
The measure of each interior angle in a regular polygon is given by the formula
![x=\frac{(n-2)180^o}{n}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B%28n-2%29180%5Eo%7D%7Bn%7D)
where
n is the number of sides of the polygon
substitute the given values
![140^o=\frac{(n-2)180^o}{n}](https://tex.z-dn.net/?f=140%5Eo%3D%5Cfrac%7B%28n-2%29180%5Eo%7D%7Bn%7D)
solve for n
![140n=180n-360\\180n-140n=360\\40n=360\\n=9\ sides](https://tex.z-dn.net/?f=140n%3D180n-360%5C%5C180n-140n%3D360%5C%5C40n%3D360%5C%5Cn%3D9%5C%20sides)
therefore
The polygon has 9 sides
Answer:
Step-by-step explanation:
2.82191696 ounce in 80 grams.
Answer:
<em>146</em>
Step-by-step explanation:
Supllementary angles add up to 180 degrees.
<em>180-34 = 146</em>