Classifying Two-Dimensional Figures Introduction

Which of the following figures is a parallelogram?

Classify this triangle by its sides and angles.

How many obtuse angles are in an obtuse triangle? Type in your answer.

Type in an example of a two-dimensional figure that has perpendicular lines.

Match each triangle to its correct name.

Which figures always have four right angles? Select ALL that apply.

Part 1: Aaron sorted shapes into two different groups.

Part 2: Click on the shape that fits the following criteria.

Renee is asked to draw a quadrilateral with two sets of identical angles, but only one pair of parallel sides. Her drawing is shown below.

Is it possible to have a right equilateral triangle? Explain.