Answer:
34 square cm.
Step-by-step explanation:
I am assuming by the number of measurements given that the shape is a rectangle.
[tex]\text {Formula for area of a rectangle: }A = w * l[/tex]
With 4 as the width and 8.5 as the length:
[tex]4*8.5 = 34[/tex]
The rectangle should be [tex]34cm^2.[/tex]