Question

ayuda es para hoy!!!!!!!!!!!!!

Answer 1

• Problema 1:

Ángulo recto = 90°

20 + x + 20 + x = 90°

2x + 20 + 20 = 90°

2x + 40 = 90°

2x = 90° - 40

2x = 50°

x = 50/2

x = 25°

Comprobación:

20 + x = 45°

20 = 20°

x = 25°

= 90°

• Problema 2:

Ángulo llano = 180°

20 + 2x + 60 + 3x = 180°

5x + 20 + 60 = 180°

5x + 80 = 180°

5x = 180° - 80

5x = 100°

x = 100/5

x = 20°

Comprobación:

20 = 20°

2x = 40°

60 = 60°

3x = 60°

= 180°

• Problema 3:

"La suma de los ángulos interiores de un triángulo es igual a 180°"

2x + 30 + 70 = 180°

2x + 100° = 180°

2x = 180° - 100°

2x = 80°

x = 80/2

x = 40

Comprobación:

2x + 30 = 110°

70 = 70°

= 180°