Please help! I’m doing pythagorean theorem and don’t understand this problem. thanks!

B is the variation of pythagorus theorem, when we want to remove the cube root we shall introduce the squares in both sides

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )