The angle between two lines having slopes as 1 and 1 is 0°. thus, the two lines coincide with each other.
The formula to find the angle between two lines having slop m1 and m2 is
tan θ= ± (m2 – m1 ) / (1+m1m2)
Substituting the value of slope in this equation
tan θ = ± (1-1)/ (1 + 1×1)
tan θ =± 0
θ= [tex]tan^{-} (0)[/tex]
θ = 0°
When two straight lines cross, two sets of angles are created. The intersection creates two acute angles and two obtuse angles. The slopes of the intersecting lines have an impact on the angles' absolute values.
It is also important to note that because the slope of a line parallel to the y-axis is indeterminate, it is impossible to calculate the angle created by two lines intersecting.
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