I would use grams, because in my country watermelons are small, but if they were huge I would use kilograms
So for this you just have to know originally how many meters are in the centimeter so it would be 1259 cm =12.59 m
1. To find the length of the edge, you will divide the total distance of 36 cm between the 4 edges that are shown.
36/4 = 9 cm per edge.
2. To find the surface area, find the area of one square (9 cm x 9 cm = 81 square cm), and multiply it by 6.
81 square cm x 6 = 486 square cm
486 square cm is the surface area.
Zero solutions
4x does not equal 4x+9