12cm
28cm
It is: 4*2 = 8 square cm
Well, honey, the perimeter of a rectangle is calculated by adding up all the sides. So for a rectangle that's 6cm by 2cm, you just do 6 + 6 + 2 + 2 which equals 16cm. There you go, darling, hope that helps!
Of the items on the given list, 4cm is the biggest.
12cm
Square side 3cm. Rectangle 2cm x 4cm. Equilateral triangle side 4cm.
A rectangle that is 2cm by 4cm has an area of 8cm. It also has a perimeter of 12cm.
28cm
30cm
The perimeter of a rectangle is calculated by adding up the lengths of all four sides. In this case, the rectangle has two sides of length 6cm and two sides of length 4cm. Therefore, the perimeter would be 6cm + 6cm + 4cm + 4cm = 20cm.
22 cm
It is: 4*2 = 8 square cm
It depends what units you use for each side ! A 1cm x 15cm rectangle has a perimeter of 16cm. So does a 2cm x 4cm one ! If you start using millimetres, there are many more possibilities !
Since all four sides are equal in a square, a square with an area of 4cm2 must be 2cm on each side. Therefore, the perimeter is 2cm x 4 = 8cm.
3cm + 4cm + 3cm + 4cm = 14 cm
Oh, dude, it's like you're asking me to do math or something. Okay, so to find the perimeter of a rectangle, you just add up all the sides. In this case, you add up 2cm + 2cm + 14cm + 14cm, which equals 32cm. So, the perimeter of your rectangle is 32cm. Easy peasy, lemon squeezy!