Construct an Equilateral Triangle
- Author:
- Crystal Vest
- Topic:
- Equilateral Triangles
Drawings of geometric figures are created using measuring tools such as a ruler and protractor. Constructions are methods of creating these figures without the benefit of measuring tools. Generally, only a pencil, straightedge, and compass are used in constructions. Sketches are created without the use of any of these tools.
Construction Steps
A compass can be used to create two equal segments, a copy, instead of using a ruler to measure.
Step 1: Use the "segment between two points" button image to draw points A and B connected by a segment. To create, select the button and then two locations anywhere in the window.
Step 2: Select the "compass" (circle) button. Choose points A and B to define the size of the circle which also represents the length of the line. Then, choose (select) point A to direct the program to create a circle with center point A, also known as Circle A, or ⊙A.
Step 3: Select the "compass" (circle) button. Choose points A and B to define the size of the circle which also represents the length of the line. Then, choose (select) point B to direct the program to create a circle with center point B, also known as Circle B, or ⊙B.
Step 4: Using the "Intersect" button, create the point of intersection, point C, between circle A and circle B by selecting circle A and circle B.
Step 5: Use the "segment between two points" button image to connect points A and C by a segment.
Step 6: Use the "segment between two points" button image to connect points B and C by a segment.
Step 7: Use the "distance or length" tool to measure the length of your original and two new segments by selecting each one. The measurements should be equal.
Step 8: Use the "ABC" tool to write your name
Step 9: Take a screen shot of your work below.