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ori16

  • one year ago

a security camera, c rotates through 79°. the camera is 7 m and 9 m from two doors, A and B, on the same building. to the nearest metre how far apart are the doors?

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  1. ori16
    • one year ago
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    |dw:1379208562740:dw| can someone help me please

  2. Salmon
    • one year ago
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    Use this:- Cosine rule \[c^2=a^2+b^2 - [2ab][cosC]\]

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