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Draw a ring around the line which is the circle’s diameter.
Mathematics 0580 · IGCSE · Circle theorems I
Circle theorems I — practice question
ABC, DEF and GHK are triangles whose vertices all lie on the circumference of a circle. The angles shown are: at A, an interior angle of 6^{\circ}; at D, 8^{\circ}; at K, 85^{\circ}; at H, 85^{\circ}; at E, 94^{\circ}; and at F, 82^{\circ}. NOT TO SCALE.