12 cm is your answer
you just multiply 2 times 6 which is 12
The importance of placing a decimal point correctly in the quotient of a division problem is that if you misplace it, you'll get the wrong answer because let's say you have the number 0001. Well if you place the decimal at 00.01 that makes it 1 hundredths. Or, if you place it like 0.001 that makes it 1 thousandths. So placing it correctly may vary your answer.
The answer you’re looking for is x=145.
Every circle adds up to 360 degrees. The only measurement that we know is 70, but the congruent markings tell us that the unknown “sides” are the same. Therefore, you’d take 360-70=290. There are 290 degrees around the unknown part of the circle, which we then divide by 2 to get 145 degrees total. I hope this helped, let me know if I can explain anymore:)
a. 1.732
because if the number behind the number you are rounding is 5 or greater, you go up a number, but if it is less than 5, then you leave it the same. this applies to both problems.
b. 3.142