Réponse :

Bonjour

Explications :

2x + 3x + 4x = 180

9x = 180

X = 180/9

X = 20

2x = 2*20=40°

3x = 3 * 20 = 60°

4x = 4 * 20 = 80°

40 + 60 + 80 = 180°

Réponse :

Explications :

Bonjour

The angles in a triangle are given as 2x, 3x and 4x.

Find the value of each angle.

Sum angles is : 180°

2x + 3x + 4x = 180

9x = 180

x = 180/9

x = 20

2x = 20 * 2 = 40°

3x = 20 * 3 = 60°

4x = 20 * 4 = 80°