The side of the square is a cm. Write down as an expression the perimeter of the rectangle, the length
| September 1, 2021 | education
The side of the square is a cm. Write down as an expression the perimeter of the rectangle, the length of which is 12 cm longer than the square and the width is 6 cm less than the side of the square.
Let’s write an expression for calculating the length of a rectangle, which is greater than the side of the square:
a + 12 cm.
The width of the rectangle is less than the side of the square and is equal to:
a – 6 cm.
Expression for the perimeter of a rectangle:
2 * (a + 12 + a – 6) = 2 * (2a + 6) = 4 (a + 3) cm.
Answer: 4 (a + 3) cm.
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