Question 30
A rectangular sheet of paper has base $20\,\mathrm{cm}$ and height $10\,\mathrm{cm}$. It is folded along the dotted lines in the figure, then cut with scissors along the indicated line, parallel to the base and halfway up the triangle.

a) Into how many pieces is the sheet divided after the cut?
b) What is the area of the largest piece?

a) Into how many pieces is the sheet divided after the cut?
b) What is the area of the largest piece?