Home > Geometry > Angles with Triangles and Polygons

How do you draw an equilateral triangle without a compass?

Answer 1

You cannot avoid using a compass if all you have is a classical straight line ruler without any markings.

In practice, especially if your ruler has markings to measure segments, you can avoid using a compass, but, from a purely theoretical viewpoint, it's not a proper way to address a construction problem.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Sadie Allen

To draw an equilateral triangle without a compass, follow these steps:

Start with a straightedge and draw a line segment of any desired length.
Using the same straightedge, draw another line segment of the same length, starting from one endpoint of the first line segment and at an angle of 60 degrees to it.
Repeat step 2 from the other endpoint of the first line segment.
Connect the endpoints of the two new line segments to form an equilateral triangle.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.