In the diagram,angle U = 30, arc XY is 170, and arc VW is 130. Find arc WY, in degrees.
In the diagram, angle U = 30, arc XY is 170, and arc VW is 110. Find arc WY, in degrees.
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arcVX + arcWY = 360 - (170 + 110)
30 = 1/2(arcWY - arcVX)
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arcVX + arcWY = 360 - (arcXY + arcVW)
∠U = 1/2(arcWY - arcVX)
