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04-02-2018
Mathematics

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Please help me with 13-20 but I need help with 13-18 to find x because its hard for me and 19-20 to find BC and find triangle PQR

Please help me with 1320 but I need help with 1318 to find x because its hard for me and 1920 to find BC and find triangle PQR class=

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Аноним Аноним

04-02-2018

We are seeing 30, 60, 90, triangles, and 45, 45, 90, triangles.
13. 3 root 3
14. 5 root 2
15. 7/2 root 2
16. 3/2 root 2
17. 7.5 root 3
19. bc is squared root 37
20. 32 + 32 root 3

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