Practice complementary angles. Create a figure. Find the missing angle
If [math]\angle[/math]DCE is equal to 30[math]^\circ[/math], then what is [math]\angle[/math]ECB equal to?
If [math]\angle[/math]DCE is equal to 42[math]^\circ[/math], then what is [math]\angle[/math]ECB equal to?
If [math]\angle[/math]DCE is equal to 27[math]^\circ[/math], then what is [math]\angle[/math]ECB equal to?