One side of the triangle was enlarged by 30%, the other was reduced by 2 times. has its area increased

One side of the triangle was enlarged by 30%, the other was reduced by 2 times. has its area increased or decreased and by what percentage?

Most likely, the statement is about a rectangle. Let’s designate its sides in the original version as a and b. Let’s write the area of this rectangle:
S1 = a * b = ab.
After changing the side of the rectangle became:
a + 30% = 1.3a;
b / 2 = 0.5b.
Let’s write the area with the changed data:
S2 = 1.3a * 0.5b = 0.65ab.
The area has decreased, we find by what percentage:
(1 – 0.65) * 100 = 35 (%).
Answer: the area has decreased by 35%.