Question

In the given figure 5, O is the centre of a circle and = 120°.

Then, =?

a) 60° b) 45° c) 30° d) 15°
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Answer 1

Answer:

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°.° ABCP is a cyclic quadrilateral

.•. angle APC = angle CBD

angle APC = ½angle AOC

=> angle APC = 50°

•.• angle APC = angle CBD

=> angle CBD = 50°

Answer 2

Answer:

°.° ABCP is a cyclic quadrilateral

.•. angle APC = angle CBD

angle APC = ½angle AOC

=> angle APC = 50°

•.• angle APC = angle CBD

=> angle CBD = 50°

Step-by-step explanation:

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