👤

Sagot :

Explications étape par étape:

NF² = NM²-FM²

NF² = 7.5² - 2.1²

NF² = 56.25 - 4.41

NF² = 51.84

NF = racine de 51.84

NF = 7.2cm

© 2024 IDNLearn. All rights reserved.