ex 1:
1/ un triangle rectangle aire: 5x2= 10cm2
2/ un carré: 4x4= 16cm2
3/ un rectangle: 4x5= 20cm2
Bonjour,
1)
Triangle quelconque
(5*2)/2 => 5cm²
2)
Parallélogramme
4*4 => 16cm²
3)
Rectangle
5*4 => 20 cm²
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ex 1:
1/ un triangle rectangle aire: 5x2= 10cm2
2/ un carré: 4x4= 16cm2
3/ un rectangle: 4x5= 20cm2
Bonjour,
1)
Triangle quelconque
(5*2)/2 => 5cm²
2)
Parallélogramme
4*4 => 16cm²
3)
Rectangle
5*4 => 20 cm²