Because the three sides are congruent, what foes that make each angle measure according to the equilateral triangle theorem. a 30 degrees
b 90 degrees
c 180 degrees
d 60 degrees

60degrees

Step-by-step explanation:

Congruent means equal and equilateral triangle also means a triangle which has three sides equal.

So 60 degrees is the sides for each angle since when they are added they all add up to 180°

<AC=60°

<CB=60°

<AB=60°

60+60+60=180°

∆ABC=180°

Option D is correct.

Step-by-step explanation:

A function takes an input say 'x' and assign it exactly one output say 'y'.  An intersection with the y-axis indicates that x is 0  

Here, x is the input, which is zero, and y is output.

So, option D is the answer - The function's output when the input is 0.

Whenever a line crosses an axis, the other coordinate is always 0. We can conclude that intersection with the x-axis is a point (x,0) and intersection with the y-axis is a point (0,y).