Calculate the total surface area if the rectengular prism with lengh=7,2m breadth=5m and lengh=3.32m . Give the answer correct to 2 decimal places

2 answers

total surface area
= 2(7.2)(5) + 2(7.2)(3.32) + 2(5)(3.32)

why are you using both a "," and a "." to represent the decimal place?
I haven't got the answer