Use S=(n-2)180
S is the sum and N is the number of sides
If you know that the sum is 7560 then plug that in for S
7560=(n-2)180
Then solve for n
7560=180n-360 (note I used distributive property)
7560+360=180n
7920=180n
7920/180=n
n=44 sides
I hope this helps :)
The middle right is 145-90, so 55°. I'm not sure about the others
3.2355
Fist we line up all the numbers, we forget about the decimal for a moment and we will come back to it in the end.
7.19
x0.45
----------
28760
We put 0 first because we are working on the ten place, and we do a normal multiplication problem: 4*9= 36 (bring the 3 over). 4*1= 4+3 = 7. 4*7= 28 Then we work on the second part.
7.19
x0.45
----------
<span> 28760
</span> <span>3555
</span>
As same as the first step, it is normal multiplication...
7.19
x0.45
----------
28760
<span>3555
</span>-----------
32315
We all both numbers together... For the final answer, we count the decimal place of the numbers given in the problem, 7.19 and 0.45. They both have 2 decimal places, so 2+2=4. So 4 decimal places. We give the final answer 4 decimal places.
3.2315
Hope this helps! Please give me the brainliest answer if you like it! If you have more questions, please leave a comment or add me as a friend!
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