Question
The figure is made up for triangles drawn up to the Layer 3.
  1. How many triangles will there be if it is drawn up to Layer 10?
  2. If there is a total of 117 triangles, how many layers are there in the figure?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The figure is made up for triangles drawn up to the Layer 3.
  1. How many triangles will there be if it is drawn up to Layer 10?
  2. If there is a total of 117 triangles, how many layers are there in the figure?