Construct each of the following and give justification:
An equilateral triangle if its altitude is 3.2 cm.
Steps of Construction:
(i) Draw a ray XY.
(ii) Draw a perpendicular bisector PQ which intersects XY at M.
(iii) Along MP, cut off MA = 3.2 cm.
(iv) Draw an angle of 30° at point A on both sides of AM which intersect MX and MY at B and C, respectively.
Thus, ABC is the required triangle.