Which statement is not a step used when constructing an inscribed equilateral triangle? Draw a radius of the circle using the straightedge. Place the compass on the point where the circle and radius intersect. Swing an arc the length of the radius from the point on the circle. Connect the two circles together using the compass.

Connect the two circles together using the compass.

Steps to inscribe an equilateral triangle into a circle:

1. You are given a circle with the center marked.

2. Draw a radius of the circle using your straightedge.

3. Keep your compass open to the width of the radius and place it on the point where the radius and circle intersect.

4. Swing an arc the length of the radius that intersects the circle to the left of the radius originally drawn.

5. Keeping your compass at the same width, place it on the new intersection point you created in the previous step.

6. Continue this process until six points of intersection exist on the circle.

7. Connect together the first, third, and fifth intersection points.

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12