Answer:
[tex]90^{\circ}[/tex]
Step-by-step explanation:
An angle is a figure obtained by two rays sharing a common vertex .
Here, a ray is a line with only one end point .
A line segment is a line which has two end points .
Vertex is a point where the two lines meet .
Two angles [tex]\alpha[/tex] and [tex]\beta[/tex] are said to be complementary if [tex]\alpha +\beta[/tex] = [tex]90^{\circ}[/tex] .
{ For example if we take [tex]\alpha[/tex]= [tex]40^{\circ}[/tex] then it's complement is [tex]\beta[/tex] = [tex]50^{\circ}[/tex] as [tex]\alpha +\beta =40^{\circ}+50^{\circ}=90^{\circ}[/tex] }
So, we can say if two angles are complementary then their sum is [tex]90^{\circ}[/tex] .
Option B. is correct .
