## Flying Geese Block Unit in PreQuilt
The **Flying Geese** block unit is composed of a manipulated equilateral triangle and two half square triangles.
And since the idea behind this series is to build a block unit (not an entire block of just a flying geese), I'm going to create a 12" finished block that has flying geese block units in it (like for example, the **Sawtooth Star** quilt block).
***
### YouTube Video
*Coming soon...*
***
### Help Guide
1. Click on the **BLOCKS tab** on the left side control panel.
2. Click on the **Make Custom Block** button.
3. The **Block Editor panel** will slide out and overtake your screen. My block is set to 12" x 12" finished, but it doesn't matter, the next steps will work for all sized blocks.
4. Set your grid guidelines by changing the number for the horizontal and vertical units.
* Since I'm going to be creating the **Sawtooth Star** quilt block, I'll set my gridlines to 4 horizontal and 4 vertical units.
5. Click on the **isosceles triangle shape** () from the central control panel.
6. One isosceles triangle will be added to the block space. **Move** it into the correct position by clicking on the shape on the block space and moving it to where it belongs.
Isosceles triangle shape added to the quilt block space
Isosceles triangle shape moved to create Flying Geese
7. Now that the isosceles triangle is in place, we can now stretch it into the shape of a quarter square triangle. With the triangle selected, grab the square on the right side of the isosceles triangle and drag it until the triangle fills the width of two grid spaces. If the snap to grid is turned on (default) then the shape will automatically fill the grid space.
* Keep in mind this is only one part of the Flying Geese, the two half square triangle pieces on either side are not there yet (empty).
8. Now we can add the rest of the block unit. Click on the **half square triangle shape** () from the central control panel.
9. Click on the **Rotate button** () on the central control panel so that it is in the correct orientation. You will need to click on the Rotate button several times to get it to be upside down.
10. lick on the **Link button** for a different fabric link (so that the new QST block piece is now linked to a different Fabric Link). In this example, I've linked them to Fabric B.
11. **Move** the new half square triangle piece so it is to the right of the quarter square triangle. It should snap into place.
12. **Click** on the half square triangle shape to select it and then click on the **Clone button** () on the central control panel.
13. Click on the **Rotate button** () on the central control panel so that the new HST is in the correct orientation. And move it into the position on the other side of the quarter square triangle piece.
14. **Move** the HST piece so that it is to the left of the orange quarter square triangle. Now you have a completed Flying Geese block unit, which is also the bottom points of a Sawtooth Star.
1 x Flying Geese block unit
Complete Sawtooth Star with 4 Flying Geese block units
***
## Sewing Construction Diagrams
### 1 at a Time - Snowball Method
{% file src="/files/Y2TQdRmq1z4HKYADeE0J" %}
### 1 at a Time - Subcut Method
{% file src="/files/e8YV26ukkWz8G4NDR9ql" %}
### 4 at a Time - No Waste Method
{% file src="/files/AujGf0h3bm17DQP31Rhs" %}
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://help.prequilt.com/prequilt-101/build-a-block-unit-for-the-fabric-calculator/triangular-units/flying-geese.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.