bonjour
aire et pas air
5 *8 = 40
aire rectangle = 40 m²
( 5 * 5 ) / 2 = 12.5
aire triangle = 12.5 m²
aire figure = 52.5 m ²
[( 11 + 6 ) * 4 ] / 2
= 68 /2 = 34
aire trapèze = 64 cm²
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bonjour
aire et pas air
5 *8 = 40
aire rectangle = 40 m²
( 5 * 5 ) / 2 = 12.5
aire triangle = 12.5 m²
aire figure = 52.5 m ²
[( 11 + 6 ) * 4 ] / 2
= 68 /2 = 34
aire trapèze = 64 cm²