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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 p a n j a n g space P Q equals 10 space c m comma space Q R equals 12 space c m comma space d a n space less than P Q R equals 30 degree.  L u a s space s e g i t i g a space P Q R space a d a l a h...

  1. 15 space c m squared

  2. 20 space c m squared

  3. 25 space c m squared

  4. 30 space c m squared

  5. 35 space c m squared

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Pembahasan

L increment equals 1 half p. r. sin Q  space space space space space space equals fraction numerator 1 over denominator up diagonal strike 2 end fraction up diagonal strike 12 to the power of 6.10. sin 30 degree  space space space space space space equals 60.1 half equals 30 degree space c m squared

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Diketahui ∠BAD=90∘, ∠BDC=120∘, sisi AB=6cm, sisi AD=10cm, dan sisi CD=14cm, hitunglah: a. Panjang diagonal BD b. luas segi empat ABCD

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