Question

exercitiul 3 va rog mult cine are timp si stie.

Answer 1

Răspuns:

Explicație pas cu pas:

a)

EM/MP=FM/MN

8/16=10/MN

8 MN= (10*16)

MN= 160: 8

MN=20cm

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b)

FM/MN=MP/ME

4/12= 15/ME

4 ME=(12*45)

ME=180:4

ME= 45 cm

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c)

FM/FN=EM/30

5/25=EM/30

25EM=30*50

25EM=150

EM=150:25

EM= 6 cm

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d)

EM/EP=FM/FN

20/30=6/FN

20 FN=30*6

20FN= 180

FN= 180:20

FN= 9 cm

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e)

EP/MP=FN/MN

21/14=FN/12

3/2=FN/12

2FN= 12*3

2FN=36

FN=36:2

FN=18 cm

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f)

FN/FM=EP/EM

24⁽⁶/18⁽⁶= 28/EM

4/3=28/EM

4 EM=28*3

4EM=84

EM=84:4

EM=21 cm