Question 980267
A, area
b, base
h, height
k, proportionality constant


{{{A=kbh}}}


An example given:
{{{k*25*16=200}}}
{{{k=200/(25*16)}}}
{{{k=8/16}}}
{{{k=1/2}}}


FORMULA:
{{{highlight(A=(1/2)bh)}}}.


Next example asks for A when h=20 and b=15.