Practice!

Sample Problem

The figure is not drawn to scale. AB, CD and EF are straight lines.

Find ∠CME.

 

∠CME = °.

Solution

∠AMB is an angle on a straight line.

So ∠AMC + ∠CME + ∠EMB = 180°.

∠CME = 180° − ∠EMB − ∠AMC

= 180° − 65° − 39° = 76°.

∴∠CME = 76°.