Respuesta :

mhanifa

Answer:

  • 21

Step-by-step explanation:

The number of rectangles and combinations:

  • 1 rectangle = 6
  • 2 rectangles = 5
  • 3 rectangles = 4
  • 4 rectangles = 3
  • 5 rectangles = 2
  • 6 rectangles = 1

Total

  • 6 + 5 + 4 + 3 + 2 + 1 = 21
ItzTds

Now the number of,

Rectangles and combinations are,

→ 1 rectangle = 6

→ 2 rectangles = 5

→ 3 rectangles = 4

→ 4 rectangles = 3

→ 5 rectangles = 2

→ 6 rectangles = 1

Then the total number is,

→ 6+5+4 + 3+2+1

→ 15 + 6 = 21

Hence, total number is 21.