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Found in: Page 341


Book edition Student Edition
Author(s) Ray C. Jurgensen, Richard G. Brown, John W. Jurgensen
Pages 227 pages
ISBN 9780395977279

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Short Answer

Find the measure of central 1.

a. The measure of angle 1 is 80°.

See the step by step solution

Step by Step Solution

Step 1. Given information:

The given figure is,

Step 2. Concept used:

In the circle the angle of the circle can be calculated by subtracting the total angle of the circle by its given value.

Step 3. Applying the concept:

Here, we can see that in the figure.

Measure of arc,


As we know,

1= =80 measure of arc

Therefore, the measure of the angle 1 is 80°.

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