It's true! Kim Kardashian nude photo for Paper mag cover has been used for Catalyst Prep's SAT prep class for mathematical equations.

According US Magazine, on the SAT prep class' Twitter, Kim's butt was used in multiple mathematical equations like: "The celebrity booty pictured on the left has an area of 64π and is divided into 8 congruent regions. What is the perimeter of one of these regions?" and other sample "As patriotic, pop-culturally-minded Americans, we couldn't help but see Kim Kardashian's recent photos as an opportunity to teach SAT math," the course explained, after reminding students, of course, "Heads up! Nov. 24 is the late registration deadline for the Dec. 6 SAT and SAT Subject Tests."

Another news related about Mrs. West, she was interviewed by a radio announcer of Australia's 92.9. She was asked if her daughter North will tell her in the future that she wants a photoshoot just like what she did for Paper mag cover. The sexy mom answered, "I would support anything she wants to do," Kim said. "I don't do anything with the intention to promote anyone else doing it - that's not even what I'm trying to do. I do it because I'm proud of it. It empowered me to feel good about myself after I had gained 500 pounds and looked like a huge slob for so long."

Check out Scoopla's video of Kim Kardashian radio interview below!