If triangle ABC equals triangle DEF, AB=8, BC=19, AC=14,EF=4x-1 and DE=y-6, find the values of x and y

How do i do this? i don’t understand

The length and width of a rectangle are consecutive even integers the area of the rectangle is 120 squares units what are the length and width of the rectangle

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b