Paper 22 Q10(b)IGCSE 0580 May/June 2023

Question

Rotate shape A 90° clockwise about the point (-1,2).

This question tests your ability to rotate a shape about a given point using coordinates. Rotations are a key transformation that preserves shape and size but changes position and orientation.

Step-by-Step Solution

Key Takeaway

For rotation about any point, always translate to make that point the origin, apply the rotation rule, then translate back.

Common Mistakes

Rotating about the origin (0,0) instead of the given centre point (-1,2) - this gives completely wrong coordinates
Confusing clockwise and anticlockwise rotation rules - 90° clockwise is (x,y) → (y,-x), not (-y,x)

Exam Tip

Always double-check your rotation by measuring the distance from each new point to the centre of rotation - it should equal the original distance.

Paper 22 Q10(b)IGCSE 0580 May/June 2023

Step-by-Step Solution

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