Answer:
180
Step-by-step explanation:
im sure that is 180 so if you did not believe me solve that and be ready for your task and your brain
N^4 - 1 = (n^2 - 1)(n^2 + 1)
= (n + 1)(n - 1)(n^2 + 1)
Measure 2 sides, then multiply them, and divide by 2.
Answer:B
Step-by-step explanation:
