The floors and walls of Gerald's attic form an equilateral triangle What is the approximate height h of the attic?

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square