bonjour
selon le th de Pythagore
BT² = BV² + VT²
BT² = 7.2² + 9.6 ²
BT² = 144
BT = √144 = 12 cm
TE = 13 - 9.6 = 3.4 cm
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bonjour
selon le th de Pythagore
BT² = BV² + VT²
BT² = 7.2² + 9.6 ²
BT² = 144
BT = √144 = 12 cm
TE = 13 - 9.6 = 3.4 cm