If ABCD is a parallelogram, what is the value of x?
20
18.5 apex
the 100000th decimal place of Pi is a 6. The following digit is a 4 and thus whether you round to the nearest 100000 decimal places or just print off the 100000th decimal place your answer will be 6. This can easily be found using Maple's evalf command.
Do you know what a decimal place is? You need to know the theory first. The decimal point is represented by a full stop between 5 and 0 in this number. Rounding is the practise of simplifying numbers to their nearest common number (specified in the question, to the nearest 10/100 etc...). In this example the second decimal place is the 7, you need to simplify to this point by rounding its neighbours to the right to their nearest 10... I.E. the 2 rounds to 0. <5 rounds to 0, > or equal to 5 rounds to 10. Your answer is 15.07.
3.14159265358979323846264338327950288419716939937510
It comes from the Latin word decimus, meaning 'tenth'. Decimal places are ordered in powers of ten.
3.141592653589
18.5
0.6898 to the nearest two decimal places is 0.69
the value of pi to the nearest 5 decimal places is 3.14159
It is 59.65 when rounded to two decimal places
26.97
3.141592653589793238462643383279502884197169399375105
7.1
7.12
1.526
23.84
It is: 6.47
For when you get more than 2 decimal places or recurring decimal places.