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Renuz · Answer 1 · 2024-08-08T05:56:18+0000

Let us suppose that angle G is x, so angle F will also be x since this is an isosceles triangle and the sides EG and EF are equal...

So,

$\tt \: 55 \degree + x + x = 180 \degree \\ \tt \: 55 \degree + 2x = 180 \degree \\ \tt \: 2x = 180 - 55 \\ \tt \: 2x = 125 \\ \boxed{ \tt \: x = 62.5 \degree}$

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