Question

Найди площадь и периметр квадрата со стороной 7см 4 см 9см

Answer 1

Дано:кв-т
а=7 см
р, s=?
Решение:
р=а×4
р=7×4
р=28 см
s=a×a
s=7×7
s=49 см в кв
Ответ:р=28 см ,s=49 см в кв

Дано:кв-т
а=4 см
р, s=?
Решение:
р=а×4
р=4×4
р=16 см
s=a×a
s=4×4
s=16 см в кв
Ответ:р=16 см, s=16 см в кв

Дано:кв-т
а=9 см
р, s=?
Решение:
р=а×4
р=9×4
р=36 см
s=a×a
s=9×9
s=81 см в кв
Ответ:р=36,s=81 см в кв

Answer 2

Площадь-длину умножить на ширину 
периметр-сумма длин сторон
1)7*7=49(см)-площадь
2)7+7+7+7=28(см)-периметр

1)4*4=16(см)-площадь
2)4+4+4+4=20(см)-периметр

1)9*9=81(см)-площадь
2)9+9+9+9=36(см)-периметр

Answer 3

Calculation of the Square's Area and Perimeter

To find the area and perimeter of a square, we need to know the length of its sides. Let's calculate the area and perimeter for each of the given squares.

For the square with a side length of 7 cm: - The perimeter (P) of a square is given by the formula P = 4 * a, where "a" is the length of one side of the square. - The area (S) of a square is given by the formula S = a^2, where "a" is the length of one side of the square.

Using these formulas, we can calculate the area and perimeter of the square with a side length of 7 cm as follows:

- Perimeter (P) = 4 * 7 = 28 cm. - Area (S) = 7^2 = 49 cm^2.

For the square with a side length of 4 cm: - Perimeter (P) = 4 * 4 = 16 cm. - Area (S) = 4^2 = 16 cm^2.

For the square with a side length of 9 cm: - Perimeter (P) = 4 * 9 = 36 cm. - Area (S) = 9^2 = 81 cm^2.

Therefore, the area and perimeter of the squares are as follows:

Square with a side length of 7 cm: - Perimeter: 28 cm - Area: 49 cm^2

Square with a side length of 4 cm: - Perimeter: 16 cm - Area: 16 cm^2

Square with a side length of 9 cm: - Perimeter: 36 cm - Area: 81 cm^2