What is the length of the focal width? x=1/4y^2

The focal width is 4 unit.

Step-by-step explanation:

The given function of the parabola is,

The general form of the parabola is,

where,

is the vertex.

and is the focal width.

Focal width is the distance between the two sides of the parabola when they have the same value as the focus.

Comparing the given parabola equation with the general form we get,

i dont know

step-by-step explanation:

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)