What is the area of this ^2

Divide the diagram as shown in attachment.

Now first calculate the area of the rectangle having side 1 and 12

So area = length ×breadth

Area = 1× 12 = 12 unit²

Now find the Area of the remaining triangle with sides 12,13,5 units

So

Now put the value as -> base= 5 and height= 12

Now add both areas for your answer

here is the

mark brainliest pl

x/3-10=8

x/3=18

x=48