Bantu tolong please ​

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Bantu tolong please ​

Bantu tolong please ​

Jawab: PT = 5,7 cm

Penjelasan dengan langkah-langkah:

Pola 1 :

5/7 = (5+PT)/ (8+7)

15(5/7) = 5+PT

PT = 15(5/7) – 5

     =75/7 – 35/7

     =40/7   = 5,7 cm

Pola 2:

x/7 = 9/15

x = 9/15 x 7

   = 63/15  

   =4,2

5/4,2 = 5+PT /9

9(5/4,2) = 5+PT

45/4,2 – 5 = PT

PT = 10,7 -5 = 5,7