Question

urgent dau coroana si inima urgent va rog!!!​

Answer 1

Răspuns:

a)

AB = 12 cm

BC = 18 cm

SF = 60 cm

b)

AD + CF = 56 cm

Explicație pas cu pas:

$\frac{SA}{SB} = \frac{SD}{SE}$  ⇒ $SB = \frac{SE*SA}{SD} = \frac{30*6}{10} = 18 cm$

$AB = SB - SA = 18 - 6 = 12 cm$

$BC = SC - SB = 36 - 18 = 18 cm$

$\frac{SA}{SC} = \frac{SD}{SF}$ ⇒ $SF = \frac{SD*SC}{SA} = \frac{10*36}{6} = 60 cm$

b)

$\frac{SA}{SB} = \frac{AD}{BE}$ ⇒ $AD = \frac{SA*BE}{SB} = \frac{6*24}{18} = 8 cm$

$\frac{SF}{SE} = \frac{CF}{BE}$ ⇒ $CF = \frac{SF*BE}{SE} = \frac{60*24}{30} = 48 cm$

$AD+CF = 8 + 48 = 56 cm$