Drawing the flag PRC and ROC with Inkscape

Rename "layer 1" to "red background".

Draw a rectangle in the middle of the page, select it with the pointer tool and set its properties: x = 0, y = 0, w = 720, h = 480, ctrl-shift-F set fill color CMYK=0-90-75-5, stroke to none.

Lock the layer "red background".

Create a new layer, name it "blue"

Create a rectangle in the middle of the page, select it with the pointer tool and set its properties: x = 0, y = 240, w = 360, h = 240, set fill color CMYK = 100-45-0-10, stroke none.

Lock the layer "blue"

Create a new layer, name it "guides"

Add a horizontal guide, y = 360, add a vertical guide, x = 180.

Draw a circle, set its properties: fill color: none, stroke color: black, stroke width: 0.5, x = 90, y = 270, w = 180, y = 180.

Ctrl-D duplicate the last circle, set dimension properties: x = 130, y = 310, w = 100, h = 100.

Ctrl-D dupliate the last circle, set dimension x = 135, y = 315, w = 90, h = 90.

Lock the layer "guides"

Create a new layer "white"

Draw a triangle with the star tool, hold the ctrl key to make sure the bottom edge is perfectly horizontal:

Select the triangle with the pointer tool, set property to: fill color: white, stroke color: none, stroke width: 0, dimension properties: w = 53.5898 (2*100/tan(75) see Wikipedia.org for a refresher course on triangle calculation), h = 100. These dimensions give a isosceles trangle of 30° at the top.

Position the triangle with the tip just touch the outer circle and horizontally center with the circles. This can be done by setting y = 350 and move the triangle horizontally and let the guide snap to the center:

Click on the triangle to get the rotate handles, move the rotate reference point to the middle of the circle where the two guides cross.

Ctrl-D to duplicate, shift-ctrl-M Transform, select Rotate tab and set angle: 30, hit apply:

Ctrl-D and hit apply transform, repeat 10 times:

Select all the triangles and do Path:Union.

Turn of Layer visibility on "white"

Unlock layer "guides" and cut the middle circle, turn layer "white" back on and paste-in-place.

Shift click the triangles together with the circle, Path:Difference:

Go back to the "guides" layer and bring the middle circle to the "white" layer.

Set the circle fill color: white, stroke: none:

Turn off layer visibility "guides", and we are done:

Rename "layer 1" to "red background"

create a rectangle, set x = 0, y = 0, w = 1200px, h = 800px, fill color = rgb(222,21,16), stroke color: none, stroke width: 0

Lock the layer

Add a layer "stars"

Select star tool, set corners: 5, ratio: 0.382, fill color: rgb(255,222,0), stroke: none, strok width: 0, draw a star out and adjust so it's pointing straight up.

Lock aspect ratio and set w = 220

Set x = 90, y = 510

Duplicate the big star and set w = 80 while keeping the aspect ratio locked:

move it to x = 440, y = 484

Now this part I'm going to fudge because where exactly the other three stars should be and their rotation is not specified. So I am going to just rotate them around the center of the big star eye balls their placement.

place vertical and horizontal guides at the middle of the two star draw a straight line betweeen:

Group the little star and the line, click to get rotate handles and set reference point to the middle of the big star.

Ctrl-D and Shift-ctrl-M Transform, set rotate angle -22, 26, 22 and place the tree copies in their places:

Set the object reference point to "pin" object down for transformation like InDesign:

Inkscape is only relative to the lower left corner.