elizabeththomas11 elizabeththomas11

09-06-2020
Mathematics

contestada

What’s the correct answer for this?

Whats the correct answer for this class=

Respuesta :

ujalakhan18 ujalakhan18

09-06-2020

Answer:

C.

Step-by-step explanation:

Since mAB = mCD

So

3x+9 = 11x-71

9+71 = 11x-3x

80 = 8x

So

x = 10

Now

Arc AB = 3x+9

= 3(10)+9

= 39°

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