alysonvc0o
alysonvc0o alysonvc0o
  • 03-05-2020
  • Mathematics
contestada

¿Cuántas esferas hay en la figura 20?

Cuántas esferas hay en la figura 20 class=

Respuesta :

averyvantuyl1
averyvantuyl1 averyvantuyl1
  • 04-05-2020

Answer:

418

Step-by-step explanation:

fig 2 = fig 1 + 5

fig 3 = fig 2 + 7 or fig 1 +5+7   16

1  2  3   4  5   6    7  8   9  10   11   12   13  14   15   16   17  18  19  20

4+5+7+9+11+13+15+17+18+19+21+23+25+27+29+31+33+35+37+39

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