Question

which shapes have exactly 3 vertices? drag them to the box. 3 vertices

Explanation:

Step1: Recall vertex - definition

A vertex is a corner point of a shape.

Step2: Count vertices of each shape

• Red square: 4 vertices.
• Pink triangle: 3 vertices.
• Green triangle: 3 vertices.
• Blue trapezoid: 4 vertices.
• Orange quadrilateral - like shape: 4 vertices.

Answer:

The pink triangle and the green triangle.