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
22 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!
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
It is: 2+15+2+15 = 34cm