agomezur14273
agomezur14273 agomezur14273
  • 18-02-2020
  • Mathematics
contestada

can someone help me with questions C,D and E?​

can someone help me with questions CD and E class=

Respuesta :

MathPhys
MathPhys MathPhys
  • 18-02-2020

Step-by-step explanation:

The number of rows is the same as the figure number, n.

The number of columns is one more than the figure number, n+1.

The total number of dots is the rows times columns, n (n+1).

In Figure 20, the number of dots is 20(21) = 420.

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