Question

circle a vertex in each figure below.
1.
2.
3.
draw the line of symmetry in each figure below.
4.
5.
6.

Explanation:

Step1: Define a vertex

A vertex is a point where two or more line - segments meet.

Step2: Circle a vertex for each figure

1. For the triangle, any of the three corner points can be circled as a vertex.
2. For the parabola - like figure, the point where the curve changes direction (the vertex of the parabola) can be circled.
3. For the V - shaped figure, the point where the two lines meet can be circled as a vertex.

Step3: Define line of symmetry

A line of symmetry is a line that divides a figure into two congruent parts.

Step4: Draw line of symmetry for each figure

1. For the trapezoid (assuming it is an isosceles trapezoid), the line that passes through the mid - points of the non - parallel sides is the line of symmetry.
2. For the semi - circular figure, the vertical line passing through the center of the circle (if it were a full circle) is the line of symmetry.
3. For the V - shaped figure, the vertical line passing through the vertex of the V is the line of symmetry.

Answer:

For circling vertices: Circle any corner point of the triangle, the vertex of the parabola - like figure, and the intersection point of the V - shaped figure. For drawing lines of symmetry: Draw a line through mid - points of non - parallel sides of the trapezoid, a vertical line through the center of the semi - circular figure, and a vertical line through the vertex of the V - shaped figure.