1. ## Area

Hi

Let P be a point inside a square such that its distance, in centimetres, from three of the vertices of the square is as shown.

The area, in the square centimetres, of the square must be.

(A) 17 (B) 4 x Squareroot 19 (C) 16.81 (D) 20.25 (E) 4 x Squareoot 17

Thanks

2. Refer to fig.
let side of square be x

$4^2 - y^2 = 1^1 - (x - y)^2
$
--------eq1
and

$4^2 - z^2 = 5^2 - (x - z)^2$ -----------eq2

and
$y^2 + z^2 = 4^2$ ---------------eq3

Now we have to solve for $x^2$

The equations looks complex, but easy to solve.
remember we have to find $x^2$ not x. This makes the things easy.
solve for y and z from eq1 and eq2 and replace them in eq3. then assume $x^2$ as t.
Solve for t.
Let me know iof you have an issue in solving it.

3. Lol

I can't do the equations. Please explain