can someone help me with this
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Step-by-step explanation:
12)
y = 50×2 (angle at centre is double of the angle on circumference)
y = 100⁰
x = 360⁰ - 100⁰
x = 260⁰
2x + y = 620
13)
angle AOB = AOC + BOC
AOB = 60⁰
AOB = 360 - 60
= 300⁰
ACB = 300⁰/2
= 150 (angle at centre is double of the angle on circumference)
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