Question

9)7 pointsWhat is the surface area of the jewelrybox that would need to be wrapped withwrapping paper?A. 146 cm2B. 292 cm2C. 336 cm2D. 672 cm217 cm6 cm8 cmОАОвOD

Answer 1

Given a box with dimensions l by w by h,

then the total surface area is given by

$\text{total surface area = }2(lw+lh+wh)$

In this case,

$l=8\operatorname{cm},w=6\operatorname{cm},h=7\operatorname{cm}$

Therefore,

$\text{ total surface area = }2(8\times6+8\times7+6\times7)=2(48+56+42)=2\times146=292\operatorname{cm}^2$

The right choice is B