Question

The surface area of an open-top box with length L, width W , and height H can be found using the formula :A=2LH+2WH+LW

Find the surface area of an open-top box with length 7 cm, width 3 cm, and height 6 cm.

Answer 1

162 cm

Explanation:

The formula is A=2(wl+hl+hw), your teacher just wrote it in a diffrent order but it's the same. Plug it in to get 2×(3×7+6×7+6×3). Calculate.