Question

3 warm-up: notice and wonder: a dart
here is a diagram.
c = c
what do you notice? what do you wonder?
notes

Explanation:

For the "Notice" part: The diagram shows a dart - like figure (a type of quadrilateral) with a common vertex labeled \( C = C' \), and there are line segments forming angles at this vertex. The figure has two pairs of line segments, with one pair of segments (the upper ones) and another pair (the lower ones) meeting at the common vertex.
For the "Wonder" part: One might wonder about the measures of the angles at vertex \( C(C') \), whether the figure is symmetric about the vertical line through \( C(C') \), or what the lengths of the line segments are.

Answer:

• Notice: The diagram has a common vertex \( C = C' \), with line segments forming a dart - shaped figure. There is a vertical line of symmetry (apparent) through the vertex \( C(C') \), and different sets of line segments (upper and lower) meeting at the vertex.
• Wonder: What are the angle measures at \( C(C') \)? Is the figure symmetric in terms of side lengths? What is the sum of the interior angles of this dart - shaped figure?