" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
panjang CD = √(DE²+CE²) = √(6²+8²) = 10
kemudian segitiga CDE sebngun dg segitiga ABC (sudut, sudut, sudut). maka berlaku :
CD/AC = DE/AB
10/15 = 6/AB
AB = 9
segitiga ABC, siku2 di B berlaku :
BC² = AC² - AB²
BC² = 15²- 9²
BC² = 225 - 81
BC² = 144
BC = √144 = 12
karena BC = BD + CD, maka
12 = BD + 10
BD = 2
jawab:
CE-DE =2 cm