[tex]t = \sqrt{ {m}^{2} - {a}^{2} } = \sqrt{ {52}^{2} - {20}^{2} } \\ \sqrt{2.704 - 400} = \sqrt{2.304} = 48 \\ \\ LP \: prisma \: segitiga \\ (a \times t) + (a + t + m) \times tp) \\ (20 \times 48) + (20 + 48 + 52) \times 45) \\ 960 + (120 \times 45) \\ 960 + 5.400 \\ 6.360 \: {cm}^{2} [/tex]
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[tex]t = \sqrt{ {m}^{2} - {a}^{2} } = \sqrt{ {52}^{2} - {20}^{2} } \\ \sqrt{2.704 - 400} = \sqrt{2.304} = 48 \\ \\ LP \: prisma \: segitiga \\ (a \times t) + (a + t + m) \times tp) \\ (20 \times 48) + (20 + 48 + 52) \times 45) \\ 960 + (120 \times 45) \\ 960 + 5.400 \\ 6.360 \: {cm}^{2} [/tex]