Solution

154361

First name
Jaeyoon
School
숲속초등학교
Age
11
Email address
cozyjaeyoon@gmail.com

I will answer these questions one by one and write the reason:
A hexagon has six equal sides -> sometimes true. A hexagon has six equal sides if and only if the hexagon is regular.
Squares have two diagonals that meet at right angles: always true. Angles of a square are each 90 degrees, and the diagonals divide it into half. So, the 4 triangles