contestada

Plz help ASAP 15 points 4. XY is tangent to circle Zat point Y. Xw is tangent to circle Zat point W.

If XY = 12 units, what is the length of the radius of circle Z to the nearest tenth of a unit
A. 4.8 units
B. 5.0 units
C. 4.5 units
D. Not here

Plz help ASAP 15 points 4 XY is tangent to circle Zat point Y Xw is tangent to circle Zat point W If XY 12 units what is the length of the radius of circle Z to class=

Respuesta :

sqdancefan

9514 1404 393

Answer:

  A.  4.8 units

Step-by-step explanation:

Segment ZX can divide the figure into two right triangles. Then angle XZY is 136°/2 = 68°. The tangent relation tells you ...

  Tan = Opposite/Adjacent

  tan(68°) = XY/r

  r = 12/tan(68°) ≈ 4.848 ≈ 4.8

The radius of the circle is about 4.8 units.

Answer: 4.8 units

Step-by-step explanation:

Otras preguntas