Polygon Perimeters Demo
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This example demonstrates how to calculate the perimeters of polygons using GeoGebra. Key math concepts include polygons, perimeters, angles, and distance calculations. Construction highlights involve GeoGebra commands like Circle, Rotate, Polygon, Segment, PointIn, and objects such as n (number of sides), A, B (points), c (center), B' (rotated point), poly1 (polygon object), sidelength (side length), and g, h, i, j, k, l, m, p, q, r, s, t, a, b, d, e, f_1, g_1, h_1, i_1, j_1, k_1, l_1, m_1, n_1, p_1, q_1, r_1, s_1, C, D, E, F. Suitable for middle school and above students to learn polygon perimeter calculations.
GeoGebra Commands & Parameters
Circle(A, B) → cRotate(B, (360 / n)°, A) → B'Polygon(B, B', n) → poly1, sidelength, q, r, s, t, a, b, d, e, f_1, g_1, g, h_1, i_1, j_1, k_1, l_1, m_1, n_1, p_1, q_1, r_1, h, s_1, C, D, E, F, G, H, I, J, K, i, L, M, N, O, P, Q, R, S, T, U, j, V, W, Z, A_1, B_1, C_1, D_1, E_1, F_1, k, l, m, pSegment(A, B) → radiusPointIn(poly1) → Pointpoly1_1Perimeter(poly1) → perimeterpoly1PointIn(poly1) → Pointpoly1Distance(B', B) → distanceB'B