Answer:
c) 3 grams
Step-by-step explanation:
Left side of hanger:
Total mass of circles: 6 (2 circles x 3 gram)
Total mass of squares: 10 (5 squares x 2 gram)
Total mass of triangles: 6 (2 triangles x 3 gram)
Makes a total of 22 grams
Right side of hanger:
Total mass of circles: 3 (1 circle x 3 gram)
Total mass of squares: 4 (2 squares x 2 gram)
Total mass of triangles: 15 (5 triangles x 3 gram)
Makes a total of 22 grams.
