Answer:

Step-by-step explanation:
The area of a triangle is given by
.
Substituting given values, we have:

The area of the square whose diagonal 712 units is 253472 units²
Step-by-step explanation:
You can find area of a square by using one of the two rules:
1. Area of a square = s², where s is the length of its side
2. Area of a square =
, where d is the length
of its diagonal
∵ The length of the diagonal of the square is 712 units
∵ The area of the square = 
∴ The area of the square = 
∴ The area of the square = 253472 units²
The area of the square whose diagonal 712 units is 253472 units²
Learn more:
You can learn more about area of figures in brainly.com/question/6530759
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Hello! The question simplified is 4x + 14. This is because when you have a negative symbol in front of the numbers you need to distribute, you change the numbers inside into the opposites, and then multiply by -1. When you do this, you get 3 + 4x + 5 + 6. When you combine like terms, you get 4x + 14. The answer is B: 4x + 14.