first of all, find the area of the large triangle.. Let OS be the base of the large triangle whose length is 3.

Let OU be the perpendicular, and its given length is 6

So, the area of the large triangle UOS is .......(I)

Now, the side OR of the rectangle has is . and since , you have

let the length of the other side of the rectangle be . therefore,

and the area of the rectangle istx...........(II)

Now the area of the small triangle QRS = ........(III)

and the area of the triangle QPU = .....(IV)

now you should know thatthe area of triangle OPU+ the area of triangle QRS+ the area of the rectangle = The area of the triangle UOS...

Use to find x...