Answer:

Each grid division is 50 pixels, as below.

Simple Figures

Here is the graph paper with the grid lines labeled:

house and a tree with grid lines

This picture is made using rectangles, lines, and ovals. The Java Graphics object has methods for drawing each of these.

QUESTION 3:

Find each rectangle in the drawing, and estimate a value for its (X,Y) upper left corner, width, and height.