Question

WZ and XR are diameters of circle C. The diagram is not drawn to scale. What is the measure of ZWX?

322
230
272
38

Answer 1

B. 230

Explanation:

Just took the test

Answer 2

Measure of arc ZWX is 230°.

Explanation:

Given:

arc WX = 50°

Now

The diameter divide a circle into two equal parts

so

`arc\ ZWX=arc\ ZRW+arc\ WX`

Since WZ is diameter of the circle.

`arc\ ZRW=180\°`

substituting in above equation we get

`arc\ ZWX=180\°+50\°=230\°`

Hence Measure of arc ZWX is 230°.