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iragen [17]
4 years ago
11

which formula can be used to find the measure of angle a. 1/2(a°+b°) b. 1/2(a°-c°) c. 1/2(b°+c°) d. 1/2(a°-b°)

Mathematics
1 answer:
Sholpan [36]4 years ago
7 0

Answer:

d

Step-by-step explanation:

The secant- secant angle 1 is one half the difference of the measures of the intercepted arcs, that is

∠ 1 = \frac{1}{2}(a - b)°

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