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marta [7]
3 years ago
10

Help, please :)I really appreciate if you help me with steps as well, thanks! <3​

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

Step-by-step explanation:

All we have to do here is to find the measure of the central angle; the measure of the central angle of a circle is the same measure as the arc it intercepts. Angle DQE in degrees = arc DE in degrees. Use the arc length formula to find the measure of the central angle:

AL=\frac{\theta}{360}*2 \pi r and filling in:

8.73=\frac{\theta}{360}*(2)(3.14)(10) which simplifies to

8.73=\frac{62.8\theta}{360} which simplifies a bit more to

\frac{360(8.73)}{62.8}=\theta so

\theta=50.04 degrees. That means that arc DE also measures 50.04 degrees.

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