A rectangular box has a square base and a closed top with dimensions x=length and h=height. How do you write the surface area in terms of x and h?
1 Answer
Jul 8, 2017
Explanation:
#"the cuboid has 6 faces"#
#"area of square base "=x xx x=x^2#
#"area of top is also square with area "=x^2#
#"the area of each of the other 4 faces " =hxx x=hx#
#rArr"surface area "=x^2+x^2+hx+hx+hx+hx#
#color(white)(rArrsurface area)=2x^2+4hx#
