Shape and Space 6
1 mark · EasyName the theorem that states, “The angle in a semicircle is a right angle.”
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The angle in a semicircle theorem
Must show: Name of theorem or equivalent form
Also accept: Angle subtended by diameter is 90°; Angle in a semicircle is 90°
Common mistakes: Incorrect circle theorem
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Marking points
B1 · 1 mark · States the correct theorem by name or equivalent form.
Worked solution
This is the 'angle in a semicircle' theorem.