√400 = 20
The answer is 20
No. If you double the length of the sides, you multiply the area by 4. For example, a 10x10 square has an area of 100, but a 20x20 square has an area of 400.
A square with an area of 400 square units has a perimeter of 80 units.
Area of a square = side^2 10,000 = side^2 100 = side Perimeter = 4(side) = 4 x 100 = 400 cm
Using Pythagoras' theorem: 252-152 = 400 and the square root of this is 20 units in length.
Fall back on Pythagoras. d^(2) = a^(2) + b^(2) Where 'd' is the diagonal, and 'a' & 'b' are the lengths of the two right angled sides. However, being a square the sides are of equal length. Hence it follows that a = b Hence a^(2) = b^(2) So substitutiung d^(2) = a^(2) + a^(2) d^(2) = 2a^(2) d = 20 as given Then d^(2) = 20^(2) = 400 Substituting 400 = 2a^(2) a^(2) = 400/2 = 200 a^(2) = 200 Square rooting both sides. a = sqrt(200) = sqrt(2 x 100) = sqrt(2) x sqrt(100) = sqrt(2) x 10 = 10sqrt(2) 10sqrt(2) numerically is 14.14213562....~ 14.14 inches.
Well, honey, to find the side length of a square with an area of 400 cm², you take the square root of the area. So, the square root of 400 is 20. Therefore, the side length of the square is 20 cm. Hope that clears things up for ya!
A square with a side length of 20 units has an area of 400 square units.
20
The area of the square cannot be 400 centimetres - it must be 400 square centimetres.If the area is 400 sq cm, then each side is sqrt(400) = 20 cm.
No. If you double the length of the sides, you multiply the area by 4. For example, a 10x10 square has an area of 100, but a 20x20 square has an area of 400.
Each side is 20 inches. 20 x 20 = 400 square inches.
A square with a side length of 20 cm (80/4) has an area of 400 cm2
400 in2
To find the area of a square field with a given total fencing, we need to first determine the length of one side of the square. Since a square has four equal sides, we divide the total fencing (80 yards) by 4 to get the length of one side, which is 20 yards. The area of a square is calculated by squaring the length of one side, so the area of this square field would be 20 yards x 20 yards = 400 square yards.
400 sqinches (20 x 20)
A square with an area of 400m has a side length of 20m. The perimeter of a square of four times the length of one of its sides. Four times 20m is 80m. Therefore, the perimeter is 80m.
When you double the length of one side, the area is increased by a factor of four. Example:A square with side lengths of 10 feet has an area of 100 square feet.A square with side lengths of 20 feet has an area of 400 square feet.