Final Answer:
The area of the original square is 49 square meters.
Step-by-step explanation:
Let's denote the side length of the original square as (a). The area of the square is given by
. When two opposite sides are increased by 10 meters, the new length becomes (a + 10), and when the other two sides are decreased by 8 meters, the new length becomes (a - 8). This forms a rectangle, and the area of the rectangle is given by
.
According to the problem, the area of the rectangle is 63 square meters:
(a + 10)(a - 8) = 63
Expanding and simplifying:
![\[ a^2 + 2a - 80 = 63 \]](https://img.qammunity.org/2024/formulas/social-studies/high-school/osmh1ytvhndxtzz1vruajl2yh3k9wxz0y8.png)
Subtracting 63 from both sides:
![\[ a^2 + 2a - 143 = 0 \]](https://img.qammunity.org/2024/formulas/social-studies/high-school/ht3c6v1pg8zap41ngqpqd92m78ti97ozii.png)
Now, we can factor this quadratic equation:
(a - 11)(a + 13) = 0
This gives us two possible solutions for (a): (a = 11) or (a = -13). Since the side length cannot be negative, we discard (a = -13).
Therefore, the side length of the original square is (a = 11), and the area of the square is:
![\[ A = a^2 = 11^2 = 121 \]](https://img.qammunity.org/2024/formulas/social-studies/high-school/ylfh8d6ndw7sgoaxc9jf069n6ukg0zawkq.png)
So, the area of the original square is 121 square meters.
Complete Question:
If two opposite sides of a square are increased by 10 meters and the other sides are decreased by 8 meters, the area of the rectangle that is formed is 63 square meters. Find the area of the original square.