Asquare and an equilateral triangle have equal perimeters. the area of the triangle is  square centimeters. how long, in centimeters, is a diagonal of the square? express your answer in simplest radical form.

a - length of side of a square

t - length of side of a triangle

The perimeter of a square:

The perimeter of a triangle:

We have the area of a triangle:

The formula of an area of an equilateral trinagle:

Substitute:

   multiply both sides by 4

    divide both sides by

The perimeter of a triangle:

Substitute to the formula of a perimeter of a square:

      divide both sides by 4

The formula of a diagonal of a square:

Substitute:

7

step-by-step explanation:

actually your concept is wrong

step-by-step explanation:

150% of x =300

150x=300×100

x=(300×100)÷150

x=200