persiah2382 persiah2382

22-01-2021
Mathematics

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can someone help me please

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sqdancefan sqdancefan

22-01-2021

9514 1404 393

Answer:

(a) 25°

Step-by-step explanation:

The angle marked 93° is the average of the arcs intercepted by the secant lines.

(161° +AD)/2 = 93°

161° +AD = 186° . . . . . multiply by 2

AD = 25° . . . . . . . . . . .subtract 161°

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