#1**+1 **

hi qwertyzz,

Since we know \(\overline{CD}\) and \(\overline{DA}\) are congruent and \(\angle {ADC} \text{ is } 60^{\circ}\), that means \(\triangle{ADC}\) is an equilateral triangle. Because it's an **equilateral **triangle, that means all sides of \(\triangle{ADC}\) are **congruent. **So, \(\overline{AC}\) is also \(\boxed{17}\).

I hope this helped you!

Let me know if you don't understand anything!

:)

lokiisnotdead May 22, 2020

#1**+1 **

Best Answer

hi qwertyzz,

Since we know \(\overline{CD}\) and \(\overline{DA}\) are congruent and \(\angle {ADC} \text{ is } 60^{\circ}\), that means \(\triangle{ADC}\) is an equilateral triangle. Because it's an **equilateral **triangle, that means all sides of \(\triangle{ADC}\) are **congruent. **So, \(\overline{AC}\) is also \(\boxed{17}\).

I hope this helped you!

Let me know if you don't understand anything!

:)

lokiisnotdead May 22, 2020