25/05/2025
SAT Trap Busted!
This question looks easy, but it’s one of the most misunderstood problems on the SAT. Two identical prisms glued together—with a twist.
Most students forget to subtract the overlapping faces when calculating surface area. That’s where the SAT trips you up.
After breaking it down step by step (scroll to see the full visual!), we found the key equation:
K = 2a² + 360a
Apply the combined surface area logic… and boom:
Final answer: a = 8 cm
Moral of the story? Always track what disappears when shapes combine.
Tag a friend prepping for the SAT or someone who’d love math tricks like this!
