Identify properties of triangles and quadrilaterals.

Math Problem Solving Quiz

Identify Properties of Triangles and Quadrilaterals

In this lesson, we will learn to identify the properties of triangles and quadrilaterals, focusing on their sides, angles, and symmetry.

Properties of Triangles

• A triangle has three sides and three angles.
• The sum of the angles in any triangle is always 180°.
• Types of triangles based on their sides:
  • Equilateral Triangle: All sides are equal.
  • Isosceles Triangle: Two sides are equal.
  • Scalene Triangle: All sides are of different lengths.
• Types of triangles based on their angles:
  • Acute Triangle: All angles are less than 90°.
  • Right Triangle: One angle is 90°.
  • Obtuse Triangle: One angle is greater than 90°.

Properties of Quadrilaterals

• A quadrilateral has four sides and four angles.
• The sum of the angles in any quadrilateral is always 360°.
• Types of quadrilaterals:
  • Square: All sides are equal, and all angles are 90°.
  • Rectangle: Opposite sides are equal, and all angles are 90°.
  • Rhombus: All sides are equal, but angles are not 90°.
  • Parallelogram: Opposite sides are parallel and equal.
  • Trapezoid: One pair of opposite sides is parallel.

Now, let's practice identifying the properties of triangles and quadrilaterals!

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