Answer:
Height = 25.46 inches
Width = 50.92 inches
Step-by-step explanation:
We can say area of a triangle is :
Area = 1/2 * length * height
The banner is twice as long and height, we can say:
length = 2*height
Since, area given as 648, we can write:
[tex]Area=\frac{1}{2}*length*height\\Area = \frac{1}{2}*(2*height)(height)\\648=height^2\\height = \sqrt{648}\\ height=25.46[/tex]
Height = 25.46 inches
Width = 2 * 25.46 = 50.92 inches
