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I said that you need all primes X/2 to sieve X. Isnt this obivious?
Don't you only need the primes that are less than sqrtX to sieve X?
@martnSpruce I think your idea is interesting but I find it slightly hard to distinguish it from the Sieve of Eratosthenes.
Would the answer be 25\sqrt{29} all over 6?
So x is $\frac{2-\sqrt{2}}{2}$
What is the perpendicular height in this case?
Don't expect a reply for another 24 hrs... Thanks in advance
Solar Devil
I don't get how you get x. Could you help?
The plane in geometry is mainly defined with 3 points on the plane.
Solar
Hello
I was looking at these set of posts but still don't get how to get number 3. Could you help?
Thanks
SolarDevil
Okay thank you so much!
Thank you so much! So the answer would be 78? If not, what are my errors.
Once again, thank you so much!
Sorry for the late reply. Points C and D are on the heptagon and the 15-gon respectively where C and D are adjacent to point A.
Thanks
SolarDevil
Hey! I have had some trouble figuring out this problem and would like some help, please show me your solution!
A regular heptagon and a regular 15-gon share a common edge AB, as shown. Find angle BCD, in degrees.
Sorry I didn't supply a drawing.
Thanks
SolarDevil