This video explains the construction of an involute of a circle.
Question: Draw the involute of a circle of diameter 20 mm and mark a tangent and normal to the curve at any point on the curve.
Link:
Construction of Involute:
1. Square: https://www.youtube.com/watch?v=18qM0...
2. Equilateral Triangle: https://www.youtube.com/watch?v=bqMFn...
3. Hexagon: https://www.youtube.com/watch?v=R9M36CPXvd4