Which statements are always true regarding the diagram? Check all that apply. m∠3 m∠4 = 180° m∠2 m∠4 m∠6 = 180° m∠2 m∠4 = m∠5 m∠1 m∠2 = 90° m∠4 m∠6 = m∠2 m∠2 m∠6 = m∠5