Which statements are true
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Answer: 1. False.
2.True.
3.True.
4.False.
5.True.
6.False.
Explanation:
1.∠XFG is lying between the one side and the line extended to the next side of the triangle, therefore it is an exterior angle.
2.∠EFG is lying between the two sides of the ΔEFG, therefore it is an interior angle of the triangle.
3.∠FEZ is lying between the one side and the line extended to the other side of ΔEFG.
4.∠YGE is a straight line it is between the one side and the line extended to the same side ∴ it cannot be an exterior angle of the triangle.
5.∠EGF and FGY lying on the same line YZ ,∴they are linear pair i.e. they are supplementary angles.
6.∠FEG and ∠FGE are both the interior angles of a triangle and we know that for supplementary angles they should lie on the same line.Therefore ∠FEG and ∠FGE are not supplementary angles.
1) ∠XFG is an interior angle of ΔEFG. - False
(∠XFG is an exterior angle of ΔEFG since that angle is out of the triangle)
2) ∠EFG is an interior angle of ΔEFG. - True
(∠EFG is an interior angle since it is included in the ΔEFG)
3) ∠FEZ is an exterior angle of ΔEFG. - True
(∠FEZ is an exterior angle as it it is out of the triangle EFG)
4) ∠YGE is an exterior angle of ΔEFG. - False
(∠YGE is not an exterior nor an interior angle since it is a straight line)
5) ∠EGF and ∠FGY are supplementary angles. - False
(∠EGF and ∠FGY do not add up to 180° so they are not supplementary)
6) ∠FEG and ∠FGE are supplementary angles. - False
(∠FEG and ∠FGE do not add up to 180° so they are not supplementary)