Respuesta :
Answer:
B=40°
Step-by-step explanation:
Sum of angles in a triangle =180°
90°+50°+x°=180°
140°+×°=180°
Collect like terms
x°=180°-140°
x°=40°
Answer:
B=40°
Step-by-step explanation:
Sum of angles in a triangle =180°
90°+50°+x°=180°
140°+×°=180°
Collect like terms
x°=180°-140°
x°=40°