GeoGebra Exploration
Finding Side Lengths and Angle Measures
Use dynamic geometry software to draw the polygon with the given vertices. Use the software to find the side lengths and angle measures of the polygon. Round your answers to the nearest hundredth.
1. A(0, 2), B(3, -1), C(4, 3)
2. A(1, 1), B(-3, 1), C(-3, -2)
3. A(-3, 0), B(0, 3), C(3, 0), D(0, -3)
Find the perimeter and area of the polygon with the following vertices.
1. D(1, 7), E(1, 1), F(-7, 1)
2. J(-4, 4), K(2, 4), L(2, -2), M(-4, -2)
3. P(0, 6), Q(3, 6), R(3, -3), S(0, -3)
4. Find the sum of the interior angles of the triangles. What do you notice?
5. Find the sum of the interior angles of the rectangles. What do you notice?