mulderjillian mulderjillian
  • 22-07-2019
  • Mathematics
contestada

Find x in picture below.
a. 4
b. 6
c.12

Find x in picture below a 4 b 6 c12 class=

Respuesta :

lucic
lucic lucic
  • 23-07-2019

Answer:

C.12

Step-by-step explanation:

Apply the formula for tangent-secant

Let the cord length inside the circle to be y

According to the tangent-secant relation

(3+y)/6 = 6/3

cross multiply

3(3+y)=6*6

9+3y=36

3y=36-9

3y=27

y=27/3

y=9

Distance x = y+3

x=9+3=12

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