Tolong bantu jawaban MTK kk

Tolong bantu jawaban MTK kk

$frac{cd}{ac} = frac{de}{ab} = frac{ce}{bc}$

$frac{cd}{ce} = frac{ad}{be}$

$frac{cd}{ad} = frac{ce}{be}$

$frac{cd}{ce} = frac{ad}{be} \ frac{4}{3} = frac{20}{x}$

4x = 20.3

4x = 60

x = 15 cm = BE

c) AC = AD + DC

= 20 + y

$frac{cd}{ac} = frac{de}{ab} \ frac{y}{y + 20} = frac{5}{30}$

30y = 5( y + 20 )

30y = 5y + 100

30y – 5y = 100

25y = 100

y = 4

CD = y = 4 cm

d) BC = BE + CE

= 15 + 3 = 18 cm

e) AC = AD + DC

= 20 + 4 = 24 cm