A rectangular prism measures 7 cm by 7 cm by 9 cm. What is its surface area?
Note
Surface area adds all 6 faces: 2(lw + lh + wh). So 2(7×7 + 7×9 + 7×9) = 350 cm².
A rectangular prism measures 7 cm by 7 cm by 9 cm. What is its surface area?
Surface area adds all 6 faces: 2(lw + lh + wh). So 2(7×7 + 7×9 + 7×9) = 350 cm².