To find the total surface area of the figure, we need to calculate the surface area of the rectangular prism and subtract the surface area of the missing section.
Surface area of rectangular prism:
Top and bottom faces: 2(13.7 cm x 11.5 cm) = 2(157.55 cm^2) = 315.1 cm^2
Front and back faces: 2(11.5 cm x 4 cm) = 2(46 cm^2) = 92 cm^2
Left and right faces: 2(13.7 cm x 6.2 cm) = 2(84.94 cm^2) = 169.88 cm^2
Total surface area of rectangular prism: 315.1 cm^2 + 92 cm^2 + 169.88 cm^2 = 576.98 cm^2
Surface area of the missing section:
Front and back faces: 2(7.5 cm x 3 cm) = 2(22.5 cm^2) = 45 cm^2
Top and bottom faces: 2(7.5 cm x 3 cm) = 2(22.5 cm^2) = 45 cm^2
Left and right faces: 2(3 cm x 4 cm) = 2(12 cm^2) = 24 cm^2
Total area of missing section: 45 cm^2 + 45 cm^2 + 24 cm^2 = 114 cm^2
Total surface area of the figure: 576.98 cm^2 - 114 cm^2 = 462.98 cm^2
Therefore, the total surface area of the figure is 462.98 square centimeters.
Use the image to answer the question.
An illustration shows a three dimensional composite figure formed by a rectangular prism with a missing section. The missing section is also in the shape of a rectangular prism. The top, right, and front faces of the figure are visible. "The faces and edges that are not visible are indicated by dashed lines. The rectangular prism has a length of 13.7 centimeters and a height of 11.5 centimeters. The missing section is removed from the bottom right corner of the rectangular prism. The missing section is a rectangular prism that shares a width of 3 centimeters with the rest of the figure. The missing rectangular prism section has a length of 7.5 centimeters and a height of 7.5 centimeters. The remaining length to the left of the missing section both measures 6.2 centimeters. The remaining height above the missing section measures 4 centimeters.
Solve for the total surface area of the figure.
1 answer