Question

Calculate the total surface area of the rectangular prism with length=7,2m breath= 5m and height 3,32m. Give the answer correct to 2 decimal places​

Answer 1

otal 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?

Answer 2

total surface area=(L×b+L×h+b×h)×2

=(3.32×5+7.2×5+3.32×7.2)×2

=153.01 (2 decimal place)