Tolong dijawab yg benar sama caranya.​

Jawaban :

HD = √BC² + HD²

= √4² + 12²

= √16 + 144

= √160

= 4√10 cm

CP² = CB² – BP² = HC² – HP²

= 16 – x² = 144 – (4√10 – x)²

= 16 – x² = 144 – (160 – 8√10 x + x²)

= 16 – x² = 144 – 160 + 8√10x – x²

= 16 = -16 + 8√10x

8√10x = 32

x = 32/8√10 = 4/10 . √10/√10

= 4/10 √10 cm

= 2/5 √10 cm