contestada

1.1 Calculate angle (1)
1.2 Prove that ||. (3)
1.3 Give, with reasons, four other angles equal to . (4)
1.4 Prove that is a cyclic quadrilateral. (3)
1.5 Prove that is a tangent to the circle going through , and . (2)
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11 Calculate angle 1 12 Prove that 3 13 Give with reasons four other angles equal to 4 14 Prove that is a cyclic quadrilateral 3 15 Prove that is a tangent to t class=

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