area=(1/2)bh
b=legnth of base
h=legnth of height
we are given
b=3 and 1/4
area=12 and 2/5
covert everybody to improper fraction
b=3 and 1/4=3+1/4=12/4+1/4=13/4
area=12 and 2/5=12+2/5=60/5+2/5=62/5
area=(1/2)bh
62/5=(1/2)(13/4)h
62/5=(13/8)h
times 8/13 both sides (13/8 times 8/13=104/104=1)
496/65=h
7 and 41/65 is answer
7 and 41/65 units or
496/65 units
