Eight hundred seven million, five hundred thirty thousand, twelve
C + 9 because you are adding o mode cars and an expression doesn't have an equal sign (=)
To know if there is a perfect square you gotta see if there is a minus sign before the second coefficient and when you square the second coefficient divided by 2 you should get the third coefficient
The perimeter and area of the square are 16√5 mm and 80 mm²
<h3 /><h3>How to find perimeter and area of a square?</h3>
Perimeter of a square = 4L
where
Therefore,
Perimeter of a square = 4 × 4√5
Perimeter of a square = 16√5 mm
Area of a square = l²
Area of a square = (4√5)²
Area of a square = 16 × 5
Area of a square = 80 mm²
learn more on square here: brainly.com/question/14090908
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