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Understanding angles and lines in geometry
Diagram Description
Diagram of lines and angles
A diagram shows two lines AB and CD intersecting at point O. Angle AOC is 40°, and angle BOD is 50°. Lines AB and CD are drawn on a plane.
- a[2]
Calculate Calculate the size of angle AOD.
Aim for approximately 2 distinct marking points.
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Answer every part before opening the mark scheme.
Maths method check
- Topic focus: Geometrical terms.
- Question style: structured_mathematics.
- Reasoning demand: reasoning.
- Check the operation, notation, units, and final answer form against the question before moving on.
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