Question 189248
119=bh/2
119=(x+6)(x+3)/2
(x+6)(x+3)=119*2
x^2+9x+18=238
x^2+9x+18-238=0
x^2+9x-220=0
(x-11)(x+20)=0
x-11=0
x=11 ans.
Proof:
119=(11+6)(11+3)/2
119=17*14/2
119=238/2
119=119