If anyone could please just look these over:
The given measures are the perimeters of squares. Find (a) the length of a side and (b) the area of the square.
Perimeters:
1.) 20 cm
2.) 100mm
3.) 4ft
4.) 2in
5.) 2.8m
My answers:
1.) a- 5cm b- 25cm squared
2.) a- 25 mm b- 625mm squared
3.) a- 1ft b- 1ft squared
4.) a- 0.5in b- 0.25in squared
5.) a- 0.7m b- 0.49m squared
Please and thank you lots!
Yes!! All of your answers are correct. :-)
Oh, thank you so much!=)
You're very welcome.
To find the length of a side and the area of a square given its perimeter, you need to divide the perimeter by 4 to get the length of one side. Once you have the length of one side, you can square it to find the area of the square.
Let's go through each example:
1.) Perimeter: 20 cm
To find the length of a side, divide the perimeter by 4: 20 cm / 4 = 5 cm.
To find the area, square the length of one side: 5 cm * 5 cm = 25 cm².
2.) Perimeter: 100 mm
To find the length of a side, divide the perimeter by 4: 100 mm / 4 = 25 mm.
To find the area, square the length of one side: 25 mm * 25 mm = 625 mm².
3.) Perimeter: 4 ft
To find the length of a side, divide the perimeter by 4: 4 ft / 4 = 1 ft.
To find the area, square the length of one side: 1 ft * 1 ft = 1 ft².
4.) Perimeter: 2 in
To find the length of a side, divide the perimeter by 4: 2 in / 4 = 0.5 in.
To find the area, square the length of one side: 0.5 in * 0.5 in = 0.25 in².
5.) Perimeter: 2.8 m
To find the length of a side, divide the perimeter by 4: 2.8 m / 4 = 0.7 m.
To find the area, square the length of one side: 0.7 m * 0.7 m = 0.49 m².
Your answers are correct! Just make sure to include the appropriate units in your final answers.