Answer:
[tex] \boxed{\sf x\degree = 67\degree} [/tex]
Step-by-step explanation:
Angle sum property of triangle states that the sum of interior angles of a triangle is 180°.
So,
⇒ 43° + 70° + x° = 180°
43° + 70° = 113°:
⇒ 113° + x° = 180°
Substracting 113° from both sides:
⇒ 113° - 113° + x° = 180° - 113°
113° - 113° = 0°:
⇒ x° = 180° - 113°
180° - 113° = 67°:
⇒ x° = 67°
