Question

find the surface area of each solid. All quadrilaterals are rectangles,and all given measurements are in centimeters. Round your answers to the nearest 0.1cm2

Answer 1

$\begin{gathered} 4) \\ Surface\text{ area=}(10cm)^2+4(\frac{(10cm)(12cm)}{2}) \\ Surface\text{ area=}100cm^2+4(\frac{(120cm^2}{2}) \\ Surface\text{ area=}100cm^2+4(60cm^2) \\ Surface\text{ area=}100cm^2+240cm^2 \\ Surface\text{ area=}340cm^2 \\ The\text{ surface area is }340cm^2 \end{gathered}$