Calculate x from a Square with Area 36: Solve for x > 0

Question

The square below has an area of 36.

x>0

Calculate x.

363636x+1x+1x+1

Video Solution

Solution Steps

00:00 Find X
00:03 We'll use the formula for calculating the area of a square (side squared)
00:09 We'll substitute appropriate values and solve for X
00:13 We'll take the square root to isolate X
00:22 And this is the solution to the question

Step-by-Step Solution

To solve this problem, follow these steps:

  • Step 1: Set up the equation based on the given information. The side of the square is given by x+1 x + 1 , and the area formula for a square is (side)2(\text{side})^2. Thus, we set up the equation as (x+1)2=36(x + 1)^2 = 36.
  • Step 2: Solve for x x . Take the square root of both sides of the equation:

(x+1)=±36(x + 1) = \pm \sqrt{36}
(x+1)=±6(x + 1) = \pm 6

  • Since x>0 x > 0 is a condition, only the positive value of x+1 x + 1 is valid, so x+1=6 x + 1 = 6.
  • Solve for x x by subtracting 1 from both sides:

x=61x = 6 - 1
x=5x = 5

Therefore, the solution to the problem is x=5 x = 5 .

Answer

x=5 x=5