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geometry
- Sum the interior angles of a triangle must be 180
- Parallelogram Exploration
- Exploring Rhombus
- Exploring Trapezoids
- Exploring Squares
- Exploring Isosceles Trapezoids
- Arcs Intercepted by Two Secant Lines
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geometry
sum of interior angles of a triangle
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1. Sum the interior angles of a triangle must be 180
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2. Parallelogram Exploration
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3. Exploring Rhombus
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4. Exploring Trapezoids
-
5. Exploring Squares
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6. Exploring Isosceles Trapezoids
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7. Arcs Intercepted by Two Secant Lines
Sum the interior angles of a triangle must be 180
Adjust the sliders to move the triangle around. You'll find that the three angles always add to form a straight line.
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