jika panjang AC=24cm , AB=10 cm maka panjang AD adalah..

☆ Panjang BC
[tex] \sqrt{ {24}^{2} + {10}^{2} } \\ = \sqrt{576 + 100} \\ = \sqrt{676} \\ = 26[/tex]
☆ BC : AB = 26 : 10 = 13 : 5
☆ AC : AD = 24 : AD
AD= 24 × 3 = 72 ÷ 4 = 18 cm