Answer:
67 degrees
Explanation:
It is given that,
The measures of the three angles of a triangle are 43°, 70°, and xº.
We need to find the value of x.
We know that, the sum of angles of a triangle is equal to 180 degrees. Applying this theorem, we get :
![43^(\circ)+70^(\circ)+x^(\circ)=180^(\circ)\\\\113^(\circ)+x^(\circ)=180^(\circ)\\\\x^(\circ)=180^(\circ)-113^(\circ)\\\\x^(\circ)=67^(\circ)](https://img.qammunity.org/2021/formulas/mathematics/college/fwyd7gpdc8pjk4zfwhv5hw147p5l04g4nk.png)
Hence, the value of x is 67 degrees.