gugu1004
27.02.2021 •
Mathematics
Please help! I need the surface area for both. Absurd answer are not tolerated. Thanks if you help!
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Ответ:
Surface area:
S = 18*7 + 2*12 = 150 ft²Figure 2Surface area of cube:
S = 6a² = 6(2.5)² = 37.5 m²Surface area of prism:
S = 2(11 + 9)(7) = 280 m²Overlapping area:
S = 2.5² = 6.25 m²Surface area of composite figure:
S = 280 + 37.5 - 2(6.25) = 305 m²Ответ: