STATEMENTS REASONS
1. ZAEB is a complement of ZBEC. 1. Given
2.
2. Definition of complementary angles
3. mZAEC = MZAEB + mZBEC .
4.
4. mZAEC = 90°
5. ZAED + ZAEC = 180°
5. Definition of supplementary angles
6.
6. Substitution Property of Equality
7. MZAED = 90°
7.

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

Idon’t feel like doing the math but you need to do 2.24 divided by 7