You are allowed to multiply as many 2's and/or as many 5's as you want. What can be the last digit of your result?

If 5 's multiplied many times then always unit digit will be 5.

If power of 2 is divide by 4 then , if remainder is zero then unit digit will be 6 and if remainder is 1 then unit digit will be 2 , if remainder is 2 then unit digit will be 4 and if remainder is 3 then unit digit will be 8.

First here we analyse when many of 2's is multiplied.

Here , we observed that after , unit digit will be repeat.

So, If power of 2 is divide by 4 then , if remainder is zero then unit digit will be 6 and if remainder is 1 then unit digit will be 2 , if remainder is 2 then unit digit will be 4 and if remainder is 3 then unit digit will be 8.

Now, analyse when many of 5's multiplied.

So, When  5 's multiplied many times then always unit digit will be 5.

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the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

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