In circle V, angle WXZ measures 30°. Line segments WV, XV, ZV, and YV are radii of circle V.

Angle ABD measures (4x + 10)o. Angle ACD measures (5x − 2)o.

Given: Circle O with diameter LN and inscribed angle LMNProve: is a right angle.


Line segment TS is tangent to circle O at point N.

Line segment BD is a diameter of circle E.

Line EF is tangent to circle G at point A.

Angle BAC measures 56°.

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