The length of a rectangle is 72–√ cm
and the width is 5–√ cm
. What is the perimeter? (1 point)
Responses
28+210 −−−√ cm
28+210 −−−√ cm
142–√+25 −−√ cm
142–√+25 −−√ cm
28+25 −−√ cm
28+25 −−√ cm
142–√+25 −−√ cm2
To find the perimeter of the rectangle, we need to add up all four sides.
The length is given as 72–√ cm and the width is given as 5–√ cm.
The two opposite sides will each have a length of 72–√ cm and the other two opposite sides will each have a length of 5–√ cm.
So, the perimeter will be (72–√ + 72–√ + 5–√ + 5–√) cm.
Simplifying this expression, we get 142–√ + 10–√ cm.
Therefore, the correct answer is 142–√+25−−√ cm.
To find the perimeter of a rectangle, we need to add up the lengths of all four sides.
Given that the length of the rectangle is 72–√ cm and the width is 5–√ cm, we can calculate the lengths of the sides.
The length of one side is 72–√ cm, and since a rectangle has opposite sides that are equal in length, the length of the opposite side is also 72–√ cm.
Similarly, the width of the rectangle is 5–√ cm, and since a rectangle has opposite sides that are equal in width, the width of the opposite side is also 5–√ cm.
Now, to calculate the perimeter, we add up the lengths and widths of all four sides:
(72–√ + 72–√) + (5–√ + 5–√)
= 2(72–√) + 2(5–√)
= 144–2√ + 10–2√
= 154 – 4√ cm
Therefore, the perimeter of the rectangle is 154 – 4√ cm.
To find the perimeter of a rectangle, you need to add up all four sides of the rectangle.
In this case, the length of the rectangle is given as 72–√ cm and the width is given as 5–√ cm.
To calculate the perimeter, you need to add the length, width, length, and width again.
So, the perimeter of the rectangle = (72–√ + 5–√ + 72–√ + 5–√) cm
Simplifying this expression, you get:
= 72–√ + 72–√ + 5–√ + 5–√ cm
= (72 + 72 + 5 + 5) – (√ + √ + √ + √) cm
= 144 + 10 – 4√ cm
Therefore, the perimeter of the rectangle is 144 + 10 – 4√ cm, which can be written as 154 – 4√ cm.