"Area of Triangle by Base and Height
'<hr /><div style="max-width:100mm;"><img style="height:55pt;" class="side" alt="triangle.png" src="https://calcpad.eu/media/math/area/triangle.png"></div>
'Base -'a = ?
'Height -'h_a = ?
'Area -'A = a*h_a/2
'2	1