Question

find the supplement of 78º.with process ​

Answer 1

Answer:

first i told you what is supplementary angle

Supplementary angles are two angles whose measures add up to 180° . The two angles of a linear pair , like ∠1 and ∠2 in the figure below, are always supplementary. But, two angles need not be adjacent to be supplementary. In the next figure, ∠3 and ∠4 are supplementary, because their measures add to 180° .

ok

now

78°+?=180°

your answer is.

78°+102°=180°

hope it's help you