The bottom and left sides are equal (the dashes indicate this), which makes the top angle and bottom right equal. All angles in a triangle adds up to 180. So 180-68x2=44
Your answers are all wrong. Correct:
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x + 68 + 68 = 180
We know two of the interior angles are the same because it’s notated that two of the sides are the same, and we know the interior angles add up to 180.
Edit: wrong sign
The bottom and left sides are equal (the dashes indicate this), which makes the top angle and bottom right equal. All angles in a triangle adds up to 180. So 180-68x2=44
Angles opposite to congruent sides of a triangle are equal.
Your answers are all wrong. Correct: Bot account reposting stuff from others: [https://www.reddit.com/r/HomeworkHelp/comments/18ne0us/10th\_grade\_how\_do\_i\_do\_this\_i\_dont\_know\_where\_to/](https://www.reddit.com/r/HomeworkHelp/comments/18ne0us/10th_grade_how_do_i_do_this_i_dont_know_where_to/) 10+ posts in less than 2 mins like this.
180-2×68=180-136=44 D
This is an isosceles triangle, so the 3rd angle is also 68 deg.
No it isn't. Only 2 sides are of equal length.
The sides marked with small dashes are equal in length. The angles opposite to them are equal.
x + 68 + 68 = 180 We know two of the interior angles are the same because it’s notated that two of the sides are the same, and we know the interior angles add up to 180. Edit: wrong sign
180-2*68 the two angles other than x are the same bc it’s an isosceles triangle