Answer:
31 square units
Step-by-step explanation:
See the picture below.
Each full or almost full square was counted first. There are 24 of them.
Then parts of squares of counted together to add to 1 square. They are color coded in the figure below. After adding them all up, the total was 31.
1 adult = 16 students
a = 16x
gravitational Potential Energy
the triangle flipped over the y axis
an octagonal prism has 8 lateral faces
