Well, honey, if we're talking about a square with sides that are all 3cm long, then each side is, surprise surprise, 3cm in length. It's a square, not a triangle – all sides are equal. So, grab a ruler, measure it out, and you'll see that each side is indeed 3cm.
Chat with our AI personalities
The length of each side of a square is the same, so if a square has a side length of 3cm, then all four sides will be 3cm long. This is because a square is a polygon with four equal sides and four right angles. Therefore, the length of each side of a 3cm square is 3cm.
A square with a side length of 3 cm has an area of 9 cm2
A square has 4 sides of equal length The perimeter is the sum of the lengths of the four sides each side has length 3 cm 3+3+3+3 = 12 cm perimeter
For a square, all 4 sides are the same length, so perimeter is 4 times length of a side. So, 4 x 3cm = 12 cm
Use the cosine rule:- c2 = 12+32 -2*1*3*cos(80) c2 = 8.958110934 Square root both sides to find the value of c :- Length of c = 2.993010346 or about 3cm
Perimeter of a square = 4*side = 4*3 cm = 12 cm.