Bonjour,
AB² - HA² = HB²
13² -12² = 169-144 = 25
HB² = 25
HB = rac25 = 5
HB = 5cm
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Bonjour,
AB² - HA² = HB²
13² -12² = 169-144 = 25
HB² = 25
HB = rac25 = 5
HB = 5cm