0.8x0.9x0.8 is how many square inches
I need to know how many square inches the above would equal
You will not get SQUARE INCHES by multiplying three numbers.
You get CUBIC INCHES.
Multiplying the first two numbers gives you a rectangular area, measured
in square inches. Then, multiplying by the third number gives you a cubic
volume, with height added to the rectangular area.
0.8 x 0.9 = 0.72 square inches, a flat area
0.72 x 0.8 = 0.575 cubic inches, a block, with volume