Two right angled triangles are joined with a common height and the height is 12m and base of each triangle = 5m.Find out the perimeter of whole figure
you have two 5-12-13 triangles.
Since the two sides of 12 are joined as a single line, add up all the sides and subtract 12 twice for the interior sides.
If that seems hard, just draw the figure, label the exposed sides, and do the math.