Răspuns :

Yourhelper00id

AC=11+1=12

luam perpendiculara BD din B

BD=4

AD=3

AB²=BD²+AD²

AB²=16+9=25

AB=5

AC= 12 u ; AB=5 u

Iorgamadalina36id

Răspuns:

A(-1,0)

B(2,4)

C(11,0)

AB=

[tex] \sqrt{( - 1 - 2) ^{2} + {(0 - 4)}^{2} } = \sqrt{9 + 16} = \sqrt{25} = 5 \\ [/tex]

AC=

[tex] \sqrt{ {( - 1 - 11)}^{2} + {(0 - 0)}^{2} } = \sqrt{ {12}^{2} } = 12[/tex]

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