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PA HELP PO TYTY!

NONSENSE REPORT! ;)
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PA HELP PO TYTYNONSENSE REPORT class=

Sagot :

Answer:

ANSWER:

[tex]m < ABC = 40°[/tex]

SOLUTION:

The central Angle is equal twice the inscribed Angle of the same arc

[tex]so \: \: m < 1 = \frac{1}{2}m AD = \frac{1}{2} \times 160 = 80°[/tex]

[tex]m < 2 = \frac{1}{2} mEF = \frac{1}{2} \times 80 = 40 °[/tex]

[tex] < 1 + < 3 = 180°[/tex]

[tex]( < 2 + <ABC ) + < 3 = 180°[/tex]

[tex]so \: \: < 1 = < 2 + < ABC[/tex]

[tex]80° = 40° + < ABC[/tex]

[tex] < ABC = 40°[/tex]