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25-04-2019
Mathematics

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What is the measure of secant line CD

What is the measure of secant line CD class=

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0915lenora 0915lenora

25-04-2019

Answer: 45

Step-by-step explanation:

By the tangent secant theorem we have AB^2 = BD(BD + CD)

So...

14^2 = 4(CD +4)

196 = 4CD + 16

4CD = 180

CD = 45

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