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lilavasa [31]
3 years ago
11

1. Given O B and marked angle measure.

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

Step-by-step explanation:

angle ADC = angle ABC / 2

= 135/2 = 67.5°

AC = 2r * sin (62.5)

AC = 1.84r

r is the radius of circle

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