Exploration 5: Equilateral and Isosceles Triangles
Exploration 5
On the left is an equilateral triangle.
An equilateral triangle is a triangle with three equal length sides.
On the right is an isosceles triangle.
An isosceles triangle is a triangle with two equal length sides.
Change the side lengths of the triangle by using the Slider.
Then, answer the questions at the bottom.
Question 1
What do you notice about the angle measurements of different sized equilateral triangles?
Question 2
If a triangle as two 60 degree angles, what must be true about the side lengths of that triangle?
Question 3
When interacting with the isosceles triangle, does the observation you made in Exploration 4 stay true?
Drawing Task
Find the fact that this exploration helps us visualize, and draw a visual on your UNIT 1 Fact Sheet B.