A square is constructed on each side of an equilateral triangle, and segments are drawn between adjacent external vertices of the three squares to form hexagon ABCDEF as shown. If the equilateral triangle has sides of length √3 - 1 units, what is the perimeter of the hexagon ABCDEF?

Step-by-step explanation:

we know that

The perimeter of the hexagon is equal to

Remember that

 ----> is the length base of an isosceles triangle

so

The perimeter is equal to

Find the length side BC

Let

x ----> the measure of the vertex angle in the isosceles triangle

The measure of the vertex angle in the isosceles triangle is equal to

Applying trigonometric property

In the right triangle  of the attached figure

----> by CAH (adjacent side divided buy the hypotenuse

Remember that

substitute

Find the perimeter

step-by-step explanation:

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%