1)
0 < x < 4
2) Aire(ABM) = (6x) / 2 = 3x
DM = 4-x
Aire (MCD) = ((3*(4-x)) / 2 = (12-3x) / 2 = 12/2 - 3x/2 = 6 - 3x/2
3) 3x = 6 - 3x/2
3x + 3x/2 = 6
6x/2 + 3x/2 = 6
9x/ 2 = 6
9x = 12
x = 12/9
x = 4/3
x doit mesurer 4/3.
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1)
0 < x < 4
2) Aire(ABM) = (6x) / 2 = 3x
DM = 4-x
Aire (MCD) = ((3*(4-x)) / 2 = (12-3x) / 2 = 12/2 - 3x/2 = 6 - 3x/2
3) 3x = 6 - 3x/2
3x + 3x/2 = 6
6x/2 + 3x/2 = 6
9x/ 2 = 6
9x = 12
x = 12/9
x = 4/3
x doit mesurer 4/3.