Geometry Through Art

Norman Shapiro

Find the Sum of the Angles

What Children Can Learn About Art and Geometry

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GIVEN: The sum of the angles of a triangle = 180° .

The sum of the angles of the vertices at the center of a circle = 360° .

FIND: The angles of all the vertices in each circle design.

If you have the Geometer's Sketchpad, here's a sketch to print out (108K).

On to Hidden Shapes in the Grid
Copyright 1995 Norman Shapiro

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Norman Shapiro
P.O. Box 205
Long Beach, NY 11561

Web page design by Sarah Seastone
4 November 1995