Answer:
4 units
Step-by-step explanation:
according to question:
perimeter of square = 16 units
4a = 16
where a is the side length
a = 16/4
= 4 units
5179-8579 is the answer and you'll see why, the ration is the difference between two numbers and in which you would call the following number on the right, shown as 8579
Answer: 21%
Explanation: 84/400=0,21
0,21 x 100=21
Your answer would be (D).
Explanation: Rotated perpendicular lines always remain perpendicular lines.
Rotation is a rigid transformation, so the lines remain perpendicular.