A cube-shaped hole is cut in a rectangular prism as shown below.
x
Х
Z
у
If x = 5 cm, y = 40 cm, and z = 30 cm, what is the surface area of the figure?
A. 3,100 square centimeters
B. 3,200 square centimeters
C. 3,000 square centimeters
D. 3.150 square centimeters

No because if you do the higher number minus the lower number you will get a positive. if you do it the other way around you will get a negative number

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.