Question

In how many equal parts will a 45⁰-90⁰-45⁰ set square divide a circle into, keeping the vertex of 45⁰ at the centre of the circle, and repeatedly rotating the set square by that angle along the whole circle?

Answer 1

If the vertex of 45⁰ in a 45°-90°-45° set square is kept at the centre of the circle, and is repeatedly rotated by this angle along the whole circle, it will divide the circle into 360⁰/45⁰ = 8 equal parts.