jkdaradehbrookessi jkdaradehbrookessi
  • 21-10-2016
  • Mathematics
contestada

In circle V, a diameter and one chord intersect at point W. Find tha value of x. A. 4.9 B. 6.3 C. 8 D. 20

Respuesta :

HomertheGenius
HomertheGenius HomertheGenius
  • 03-11-2016
V - the center of a circle;
r = 10
In the triangle VWS :
WS = x
VS = 10 ( hypotenuse )
VW = 10 - 4 = 6
We will use the Pythagorean theorem:
x² + 6² = 10²
x² + 36 = 100
x² = 100 - 36
x² = 64
x = √ 64 = 8
Answer:
C ) 8
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