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Plzzzz cine stieee!


Urgeent!​


Plzzzz Cine Stieee Urgeent class=

Răspuns :

Răspuns:

Explicație pas cu pas:

10

L1/L2=8/5         l1/l2=4/3

A1/A2=L1×l1/L2×l1=8/5×4/3=32/15

11

A1/A2=81/121=l1²/l2²=(l1/l2)²   ⇒l1/l1=9/11

P1/p2=4l1/4l2=l1/l2=9/11