Question

the model of a tower shown here is made up of unit cubes stacked on top of each other. how many unit cubes in all are used to form the tower? ​

Answer 1

Answer:

35 cubes are used to form the tower

Step-by-step explanation:

Attached is the figure

First We see Columns  of extreme row both sides

Number of cubes

1 + 2 + 3 + 4 + 5 + 4 + 3 + 2 + 1

= 25

Then We see column of next rows

1 + 2 + 3 + 2  + 1

= 9

Now we left with 1 more cube

so total cube = 25 + 9 + 1 = 35

35 cubes are used to form the tower