The formula for the surface area of a rectangular prism is
A= 2(wl+hl+hw)
We are given the height =2cm, width= 5cm, and length= 10cm. All you have to do is plug this info in!
A= 2(wl+hl+hw)
= 2[(5)(10)+(2)(10)+(2)(5)]
= 2(50+20+10)
= 2(80)
=160 cm squared
Hope this helps!! :)
1. Anwser=53.3 (do 40*3 then anwser x 4)
2anwser=120
It would be equal to 110 2/7
There is no ones place after the decimal so 3 is in the tenth place, so 2.4