FInd the area of the sector (look at image).

M∠abc=138° and m∠def=31° . which statement is true about ∠abc and ∠def ? a: the angles are neither complementary nor supplementary. b: the angles are complementary. c: the angles are supplementary.

A43 degree angle can be classified as which angle type ?

Xyz was reflected to form lmn which statements are true regarding the diagram check all that apply