3 x 3 = 9cm2 So the length of each side of the square must be 3cm.
The area of one face of a 3cm cube is the area of a 3cm square. That's 3 x 3 = 9cm2.
3 cm X 3 cm is an area of 9 cm2, or nine square centimeters. That's an area one-fifth that of an ordinary business card.
Approx area = 6*4 = 24 sq units. Exact answer = 23.78 square units so the approximation is 0.9% too large.
Lets say we had a right triangle that we wanted to find the hypotenuse of. The 2 other sides were 6cm and 3cm. You would square each of these(multiply by themselves). You would then get 36cm2 and 9cm2. You would add these numbers (52) then find the square root of this number. (6.7cm) The answer is 6.7cmThe formula for this is: a2 + b2 =c2Keep in mind that a and b are the other sides and c is the hypotenuse
Since a square has four equal sides, the length of one side is (24/4)cm=6cm and the area is length X width or 6cmX6cm=36cm2. One fourth of A's area is then 36cm2/4=9cm2. Square B then has a length and width of 3cm and its perimeter is 2(L + W)=2(3cm+3cm)=12cm. STUPID