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Sagot :

1. First of all, this is a isosceles triangle, meaning measurement I=58°, which makes it way easier to find T.

[tex]58 + 58 + x = 180[/tex]

[tex]116 + x = 180[/tex]

[tex]x = 64[/tex]

1. m{t}°=64 m{I}°=58

2. This one is easy because algebra is the key.

[tex]100 - x + 30 + 4x + 7x = 180[/tex]

Add like-terms.

[tex]130 +10x = 180[/tex]

[tex]10x = 50[/tex]

[tex] \frac{50}{10} = x = 5[/tex]

x=5

The only thing that confuses me is the y. Is it 7xy, y as a side, or what? Feel free to reply

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