Answer:
The height h is [tex]5\ cm[/tex]
Step-by-step explanation:
we know that
The surface area of the bread is equal to
[tex]SA=2B+Ph\\[/tex]
where
B is the area of the base
P is the perimeter of the base
h is the height
In this problem
If fifty percent of the surface area of the bread is crust
then
[tex]2B=Ph\\[/tex]
substitute the values
[tex]2(10)(10)=4(10)h\\[/tex]
[tex]200=40h\\[/tex]
[tex]h=200/40=5\ cm[/tex]
