Some shapes have special properties. For example, an isosceles triangle has two sides that are the same length, and two base angles (opposite the same-length sides) that have the same measure. What are the special properties of the following shapes? List as many as you can. Be ready to share your special properties with your team in the next lesson.
Draw a picture of what you think each shape looks like.
List the special properties that relate to their side lengths, angle measures, and/or parallel lines.