SADRINATASYA01
1. Dik : panjang AC/CA = 25cm panjang AD/DA = 9cm panjang CD = panjang AC - panjang AD = 25cm - 9cm = 16cm Dit: a. panjang BD b. panjang BC jwb: a. BD² = CD × DA BD² = 16 × 9 BD² = 144cm BD = √144cm BD = 12cm b. BC² = CD² × CA² BC² = 16cm×25cm BC² = 400cm BC = √400cm BC = 20cm 2. a. <P = <P = 90° <B = <D = 90° <A = <C = 90° karena sudut - sudut yang bersesuaian sama besar b. AB/CD = AP/PC = BP/PD C.CP/PB = CD/AB CP/9 = 20/8 CP×8 = 9×20 CP×8 = 180 CP = 180/8 CP = 22.5cm maaf kalau salah,semoga bermanfaat!
panjang AD/DA = 9cm
panjang CD = panjang AC - panjang AD
= 25cm - 9cm
= 16cm
Dit: a. panjang BD
b. panjang BC
jwb:
a. BD² = CD × DA
BD² = 16 × 9
BD² = 144cm
BD = √144cm
BD = 12cm
b. BC² = CD² × CA²
BC² = 16cm×25cm
BC² = 400cm
BC = √400cm
BC = 20cm
2. a. <P = <P = 90°
<B = <D = 90°
<A = <C = 90°
karena sudut - sudut yang bersesuaian sama besar
b. AB/CD = AP/PC = BP/PD
C.CP/PB = CD/AB
CP/9 = 20/8
CP×8 = 9×20
CP×8 = 180
CP = 180/8
CP = 22.5cm
maaf kalau salah,semoga bermanfaat!