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Firlakuza [10]
3 years ago
7

Question 8 circle theorems PLEASE

Mathematics
1 answer:
dedylja [7]3 years ago
3 0

Answer:

Opposite angles of a cyclic quadrilateral add to 180°

Angel CBA and angle ADC adds up to 180°.

CBA + ADC = 180

CBA = 180 - ADC


x + CBA = 180

x + 180 - ADC = 180

x - ADC = 0

x = ADC


y + ADC = 180

y + x = 180


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