Question

Nomber 2 aja
tolong buat besokkkkk.....

Answer 1

A. BA^2 = AD × AC
= 9×(9+4)
= 9×13
= 117
BA = 3 akar 13

b. BD^2 = AD×DC
= 9×4
BD^2 = 36
BD = 6

c. BC^2 = CD × CA
= 4 × (4+9)
= 4×13
= 52
BC = 2 akar 13

maaf kalau salah

Answer 2

2.
a) BA = akar dr AD.AC
= akar dr 9.(9+4)
= akar dr 9.13
= √117
= √9.13
= 3√13 cm


b) BD = akar dr CD.AD
= akar dr 4.9
= √36
= 6 cm


c) BC = akar dr CD.AC
= akar dr 4.(4+9)
= akar dr 4.13
= 2√13 cm