Answer:
<h2>
8 units²</h2>
Step-by-step explanation:
Let side of the square = a
The , Area of square = a²
Now, Midpoint of Diagonal DB is E
And DE = 2 units
So, DB = 2 DE = 2 × 2 = 4 units
Now, using Pythagoras theorem in ∆ BCD
DB² = DC² + BC²
plug the values

Collect like terms

Evaluate the power

Swipe the side of the equation

Divide both sides of the equation by 2

Calculate

Therefore, The area of the square is 8 sq.units.
Hope this helps..
Best regards!!
Answer:
A. 2 in.
Step-by-step explanation:
It would be 3 because in a half means like cut so what is in the middle between 2 and 4? 3 so that is correct
Answer:
The solution to the system of linear equations is (1,9).
Step-by-step explanation:
The given system of linear equations
... (1)
.... (2)
Subtract equation (2) from equation (1) to eliminate y.
On combining like terms, we get
Add 8 on both sides.

Divide both sides by 8.

The value of x is 1.
Substitute x=1 in equation (1).



The value of y is 9.
Therefore the solution to the system of linear equations is (1,9).