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fenix001 [56]
3 years ago
8

Dimensiunile unui dreptunghi se exprima prin doua numere naturale impare consecutive .Daca perimetrul dreptunghiului este egal c

u 288 cm,atunchi latimea sa este egala cu:
A.63cm B.67cm C.71cm D.75cm

DAU COROANA!
Mathematics
1 answer:
bezimeni [28]3 years ago
7 0

Answer:

C.71

Step-by-step explanation:

Ha, ha, aceasta a fost o experiență amuzantă! În primul rând, aș dori să spun că nu vorbesc România. M-am gândit că este spaniolă, așa că am încercat-o și mi-am dat seama că nu am putut înțelege acest lucru, așa că folosesc Google traducere. Oricum, problema:

_________________________

Primele lucruri sunt să notăm informațiile pe care le avem.

Știm că perimetrul = 288 și vrem să obținem lățime.

Notează: P=288 & W=?

Notează formula perimetrului: P=2(L+W)

1) conectați ceea ce avem: 288=2(L+W)

2) Împărțesc ambele părți câte 2 pentru a obține: 144=L+W

3) Acum înțelegeți ce înseamnă „două numere naturale impare consecutive” .... vrem numere întregi care sunt numere impare care se succed.

(„consecutiv”, adică 3,5,7,9,11)

4) Înțelegând asta, trebuie doar să conectați diferitele opțiuni pentru lățime și să vedeți ce numere sunt consecutive ciudate! (amintiți-vă să obțineți L de la sine, mutând lucrurile în cealaltă parte)

A. W=63; 144=L+63 --> L=81

B. W=67 --> 77

C. W=71 --> 73

D. W=75 --> 69

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