A square, the side length increases 1 cm, the area increases 17 cm, how much is the original square area

A square, the side length increases 1 cm, the area increases 17 cm, how much is the original square area

The original side length of the square is (17-1) △ 2 △ 1 = 8 cm
The original square area is 8 × 8 = 64 square centimeters

When the side length of a square increases by 2cm, its area increases by 24cm2. The original side length of the square is ()
A. 5cmB. 6cmC. 8cmD. 10cm

Let the length of the original square be xcm, and the length of the added side be (x + 2) cm. According to the meaning of the title, we get: (x + 2) 2-x2 = 24, and the solution is: x = 5, then the original length of the square is 5cm

The side length of the square increases by 2 cm, and its area increases by 24 cm. What is the side length of the square

Let the side length of this square be x cm
(X+2)^2=X^2+24
X^2+4+4X=X^2+24
4X=20
X=5
A: the side length of this square is 5cm

If the side length of a square is increased by 2 cm, its area will be increased by 24 cm. What is the original area of the square?

First of all, let the side length of the original square be a and the area be s. from the title, we know that the square of (a + 2) = S + 24, and expand the formula on the left: the square of a + 2 times, a + 4 = S + 24, and because the square of a = s, the two sides are subtracted to get: 2 times, a = 20, a = 10. Thus, the area of the original square is s = 100

If the length of each side of a square is increased by 1 cm, the area will be increased by 17

Let the side length of a square be X
（x+1)²-x²=17
x²+2x+1-x²=17
2x=17-1
2x=16
x=8
The side length of a square is 8

If each side of a square is 1 cm long, its area will be increased by 17 cm?

Let X be the side length
∴ (x+1)(x+1)-x*x=17
∴x²+2x+1-x²=17
2x=16
x=8
The area is 8 * 8 = 64 square meters

The radius of a circle is 1cm. What is the length of a square of the same area? (the result is accurate to the thousandth percentile)

Area 1x1x3.14 = 3.14
The side length is 1.772cm

The radius of a circle is 1cm. What is the side length of a square with the same area as it

The radius of the circle is 1cm and the area is (3.14159)
Then the square side length is the square root of the area = 1.77cm [the result is accurate to 0.01]
I don't know if I agree with this answer

1. Increase one side of a square by 2cm and the other side by 1cm, the area of the rectangle is 2 times larger than that of the square by 11cm & sup2;, let the side length of the square be xcm, and list the equation (without solution)

Square of 2 (x + 2) (x + 1) - x = 11

If one side of a square is increased by 2cm and the other side by 1cm, the area of the rectangle is twice that of the square by 11cm;,
Then the side length of the original square is ()
A.1CM B.2CM C.5CM D.7CM

The side length of the original square is a 1cm