How do I construct an isosceles triangle?

How do I construct an isosceles triangle?

To construct an isosceles triangle, you'll need a ruler, a compass, and a pencil. Do you have these tools?

Yes, I have them. What's the first step?

Start by drawing a base line of your desired length. This will be the base of the triangle.

Got it! What's next?

Next, use the compass to measure the length of the two equal sides. Place the compass point on one end of the base and draw an arc above the line.

And then?

Now, without changing the compass width, place the point on the other end of the base and draw another arc. The intersection of the arcs is the top vertex of your triangle.