Răspuns :

Alien2k20id

Răspuns:

A=bxh/2

A)Aabc=BExAC/2=ADXBC/2

A=BEXAC/2=9x16/2=72cm² dar si ADXBC/2=72⇒8xBC/2=72⇒BC=2x72/8=18

b)Aabc=ADXBC/2=10x9/2=45

BExAC/2=45⇒BEx15/2=45⇒BE=45x2/15=6

c)Aabc=BExAC/2⇒45,5=BEx13/2⇒BE=45,5x2/13=7

Aab=ADXBC/2⇒45,5=ADx7/2⇒AD=45,5x2/7=13

Explicație pas cu pas:

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