Use Appendix 1 to complete the paragraph with: at, with, on, about. Use the phrases to make sentences - id99161520220904 от Мозговина12 04.09.2022 04:43

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Другие предметы: Use Appendix 1 to complete the paragraph with: at, with, on, about. Use the phrases to make sentences about yourself and your friends. My best friend, John, is very good l) > at solving

Мозговина12 · Accepted Answer

V=abcsina=3*sqrt3*14*12*sqrt2/2=252sqrt6

S=absina площадь параллелограмма в основании параллелепипеда
с - высота параллелепипеда

теорема косинуса для диагоналей основания:
d1^2=a^2+b^2-2abcosa d1^2=196+27+2*14*3*sqrt3*sqrt2/2=223+42sqrt6
d2^2=a^2+b^2-2abcos(180-a) d2^2=196+27-2*14*3*sqrt3*sqrt2/2=223-42sqrt6

теорема пифагора для диагоналей параллелепипеда:
D1^2=d1^2+h^2 D1^2=223+42sqrt6+144=367+42sqrt6 D1=sqrt(367+42sqrt6)
D2^2=d2^2+h^2 D2^2=223-42sqrt6+144=367-42sqrt6 D2=sqrt(367-42sqrt6)

Use Appendix 1 to complete the paragraph with: at, with, on, about. Use the phrases to make sentences about yourself and your friends. My best friend, John, is very good l) > at solving

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