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If two Secants intersect in the exterior of a circle the product of the lenght of one secant segment and the lenght of external part is equal to the product of the lenght for the other secant segment and the lenght of its external part​

Sagot :

Answer:

Just like regular numbers, angles can be added to obtain a sum, perhaps for the purpose of determining the measure of an unknown angle. Sometimes we can determine a missing angle because we know that the sum must be a certain value. Remember -- the sum of the degree measures of angles in any triangle equals 180 degrees. Below is a picture of triangle ABC, where angle A = 60 degrees, angle B = 50 degrees and angle C = 70 degrees.

Step-by-step explanation:

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