248 = 48 + 8x + 12 x
200 = 20 x
x = 10
The three different side areas are 24, 4x = 40 and 6x= 60
The side lengths must be 4, 6 and 10.
The length of the box is 10.
The surface area S of the rectangular solid in the figure is
S = 2(24) + 2(4x) + 2(6x).
Find the length x of the box if the surface area is 248 square centimeters.
1 answer
1 answer