Question

Fie segmentul AB de lungime 45 sm si M apartine AB.Calculati lungimile AM si MB daca:a)AM supra MB=2 SUPRA 7 
b) AM supra MB = 5 supra 4 

Answer 1

AB=45 cm 

a.

AM/MB= 2/7 => AM = 2K , MB=7K 

AM + MB = AB => 2K + 7K = 45 => 9K = 45 => K = 5 =>

AM = 2K = 2 x 5 = 10 
MB = 7K = 7 x 5 = 35 .

(Verificare : 10 + 35 = 45 )

=> inseamna rezulta :)

b. AM/MB = 5/4 => AM = 5K , MB = 4K

AM + MB = AB => 5K + 4K = 45 => 9K = 45 => K = 5

AM = 5K => AM =  5 x 5 = 25 
MB = 4K => MB = 4 x 5 = 20