Conisder that the given hexagnal patch can be considered as formed by six triangles with the same area.
THen, the area of the hexagonal patch is:
AT = 6*A
where A is the area of one triangle, given by:
A = b·h/2
where b is the base (b = 4 cm) and h th height (h = 3.5 cm):
A = (4 cm)(3.5 cm)/2 = 7 cm²
Then, the total area of the hexagonal patch is:
AT = 6*(7 cm²) = 42 cm²
