Question

how many triangles are needed to compose a region that is 1 1/2 square meters?

Answer 1

Answer : 27 triangles

Explanation : Considering if one triangle has 1/18 $m^{2}$ area

n triangle have n x 1/18 $m^{2}$

To composed an area of 3/2 $m^{2}$ we need to get 27 triangles each having an area of 1/18 $m^{2}$

Since 27 ×1/18 $m^{2}$

= 3/2 $m^{2}$