Question

a) Stiind ca AD 6 cm. CD 4 cm. aflati BD i BC.
b) Stiind că AD-215 cm, BD-5 cm, aflau CD si BC.
c) Stiind ca CD 4 cm si DB 5cm aflati BC si AD.va roggggg urgent dau coroanaaa!
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Answer 1

Răspuns:

a) AD²= BD* CD

36= BD *4   BD= 36 :4= 9    BD= 9

BC = 9+4=13

c) BC= CD+BD= 4+5= 9 cm

AD= √BD*CD= √4*5= √20

AD= 2$\sqrt{5}$