ciranilo
ciranilo ciranilo
  • 15-06-2020
  • Mathematics
contestada

need help pls on circle geometry

need help pls on circle geometry class=

Respuesta :

meolatlhegi
meolatlhegi meolatlhegi
  • 15-06-2020

Answer:

25

Step-by-step explanation:

AB is a tangent to the circle hence the angle ABO is a right angle !!! With that knowledge we can construct a right-angled triangle with sides AB ,BO and OA .

Applying the Pythagorean theorem we get that OA is the hypotenuse and thus

[tex]oa = \sqrt{ab {}^{2} + ob {}^{2} } [/tex]

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