Answer:
H=[(A/2)-LW]/WL
Step-by-step explanation:
A=2LW+2WH+2HL
or,A=2(LW+WH+HL)
or,A/2=LW+WH+HL
or,(A/2)-LW=WH+HL
or,(A/2)-LW=H(WL)
or,[(A/2)-LW]/WL=H