yang bisa jawab, pakai caranya!

CD/AE = DB/EB
t / 70 = 64 / 112
112 . t = 70 x 64
112 . t = 4480
t = 4480 / 112
t = 40 cm

rumus teoremapytagoras
[tex] {be}^{2} = {ae}^{2} + {ab}^{2} \\ {112}^{2} = {70}^{2} + {ab}^{2} \\ 12544 = 4900 + {ab}^{2} \\ {ab}^{2} = 12544 - 4900 \\ ab = \sqrt{7644} = 87.5 \\ ab = bc \\ {cd}^{2} = {bd}^{2} - {bc}^{2} \\ {87.5}^{2} = {64}^{2} + {bc}^{2} \\ {bc}^{2} = 7656.25 - 4096 \\ bc = \sqrt{3560.25} \\ = 59.67 [/tex]
jadi t=59,67 cm