Is the following definition of complementary reversible? if yes, write it as a true biconditional.

complementary angles are two angles whose sum measures to 90 degrees

a. this statement is not reversible
b. yes, if angles are complementary, than their sum measures to 90 degrees
c. yes, angles are complementary if (and only if) their sum measures to 90 degrees
d. yes, angles are complementary if their sum measures to 90 degrees

C)Yes, angles are complementary if (and only if) their sum measures to 90 degrees. if and only if matters a lot because it says the condition must be held.

Letter b hope it

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.