Bonjour j'ai besoin d'aide pour mon DM de mathématiques c'est pour demain !
Comment calcule-t-on en détaillant 3/8ème x 2/9ème et 5/3ème - 1/3ème x 2/7ème
Merci !

8. Se considera triunghiul dreptunghic ABC, m(A) = 90°, in care AB = 12cm si AC = 12√3 cm. Calculati lungimea ipotneuzei si masurile unghiurilor ascutite.

11. Fie triunghiul dreptunghic ABC, m(A) = 90°, AB = 12 cm si tg B = 1. Calculati laturile triunghiului, cos B, sin C, ctg B si tg C.

13. In triunghiul dreptunghic MNP, m(N) = 90°, se cunosc m(M) = 60° si MN = 8 cm. Calculati perimetrul si aria triunghiului MNP.

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Latimea unui dreptunghi reprezinta o cincime din lungimea dreptunghiului.  (1 supra 5)


Daca adun latimea cu lungimea voi optine 84 metri.
Afla perimetrul unui patrat avand latura egala cu lungimea dreptunghiului.

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