Respuesta :
Answer: 1: 3mm
Answer:2: A rectangle with 4 congruent sides is a square.
A = s^2
s^2 = A
s^2 = 36 mm^2
s = sqrt(36 mm^2)
s = 6 mm
Step-by-step explanation:
Part A. The length of the rectangle is 3 m.
Part B. The length of the single side of the rectangle or square is 6 mm.
Area of Rectangle
The area of a rectangle is defined as the total surface area obtained by multiplying its length and width.
Part A
Given that the area of a rectangle is 60 square meters and the width of the rectangle is 20 m. The length of the rectangle will be given below.
[tex]a = l\times w[/tex]
Where a is the area of the rectangle, l is the length and w is the width of the rectangle.
[tex]60 = l\times 20[/tex]
[tex]l = \dfrac {60}{20}[/tex]
[tex]l = 3\;\rm m[/tex]
Thus the length of the rectangle is 3 m.
Part B.
A rectangle has equal sides and area of 36 square mm. Thus the rectangle will be a sqaure. The area of the square is the product of 2 sides.
[tex]a = s^2[/tex]
Where a is the area of the square and s is the side of the square.
[tex]36 = s^2[/tex]
[tex]s = \sqrt{36}[/tex]
[tex]s = 6 \;\rm mm[/tex]
Hence the length of the single side of the rectangle or square is 6 mm.
To know more about the area of a rectangle, follow the link given below.
https://brainly.com/question/14383947.
