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P a d a space s e g i t i g a space P Q R space d i k e t a h u i space less than Q P R equals 55 degree comma space less than P Q R equals 80 degree. space J i k a space p a n j a n g space P R equals 10 space c m comma space p a n j a n g space s i s i space P Q....

  1. 4 left parenthesis 41 minus 20 square root of 2 right parenthesis 47 over 63

  2. 4 left parenthesis 40 minus 20 square root of 2 right parenthesis

  3. 4 left parenthesis 39 minus 20 square root of 2 right parenthesis

  4. 4 left parenthesis 38 minus 20 square root of 2 right parenthesis

  5. 4 left parenthesis 37 minus 20 square root of 2 right parenthesis

A. Acfreelance

Master Teacher

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Pembahasan

less than R equals 180 degree minus left parenthesis 80 degree plus 55 degree right parenthesis  space space space space space space space equals 180 degree minus 135 degree equals 45 degree    r squared equals p squared plus q squared minus 2 p. q. cos R  r squared equals 8 squared plus 10 squared minus 2.8.10. cos 45 degree  space space space equals 64 plus 100 minus up diagonal strike 2.8.10. up diagonal strike 1 half end strike square root of 2  space space space equals 164 minus 80 square root of 2  space space space equals 4 left parenthesis 41 minus 20 square root of 2 right parenthesis

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