I could call this 4s squared over 4, just to be able to have a common denominator. And 4s squared minus s squared over 4 is going to be equal to 3s squared over 4. So we get h squared is equal to 3s squared over 4. Now we can take the principal root of both sides, and we get h is equal to the square root of 3 times s over 2. So now we can just substitute back right over here, and we get our area is equal to 1 half s times h. Well, h is this business, so it's s times this. So it's 1 half times s times the square root of 3s over 2, which is going to be equal to s times s is s squared. So it's going to be square root of 3s squared over 2 times 2 over 4.