"Area and Perimeter of Right Triangle
'<hr /><div style="max-width:110mm;"><img style="height:60pt;" class="side" alt="right-triangle.png" src="https://calcpad.eu/media/math/area/right-triangle.png"></div>
'Dimensions
a = ?','b = ?
c = sqr(a^2 + b^2)
'Area
A = a*b/2
'Perimeter 
P = a + b + c
'4	3