Question 958672
Area of ∆=1/2*base*height
As per the problem,
Area of ∆=9 square inch
Let base=x
Let height=2x
9=1/2*2x*x
9=x^2
x=√9
x=3
Therefore base=x=3
Height=2x=6
Hope it helps you!
Cheers Mukul!