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Vika [28.1K]
3 years ago
13

What is the measure of secant dc​

Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

CD = 3

Step-by-step explanation:

Given 2 secants from an external point to the circle, then

CB × CA = CD × CE , that is

4 × (4 + 6.5) = CD × 14

4 × 10.5 = 14CD

42 = 14CD ( divide both sides by 14 )

CD = 3

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Answers and Step-by-step explanations:

9-18.

a) All the angles of a triangle add up to 180, by definition. So, we can write the expression: 30 + 115 + x = 180.

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a) These angles add up to 180:

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Step-by-step explanation:

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