Opposite Sides and Angles
Opposite Sides & Angles Theorem
Move the vertices of the triangle to make ∠ABC largest angle. Which SIDE is the longest?
Move the vertices of the triangle to make ∠BAC the largest angle. Which SIDE is the longest?
Move the vertices of the triangle to make ∠ACB the smallest angle. Which SIDE is the shortest?
Move the vertices of the triangle to make the side AB the biggest side. Which ANGLE is the biggest?
Move the vertices of the triangle to make the side BC the biggest side. Which ANGLE is the biggest?
Move the vertices of the triangle to make the side AC the shortest side. Which ANGLE is the smallest?
Move the vertices of the triangle to make the side AB the shortest side. Which ANGLE is the smallest?
Looking for Patterns
What patterns do you notice from this activity? What is the relationship between the size of angles and the length of sides?
Looking for Patterns
Move the vertices to make an isosceles triangle. What do you notice about the angles?