Square area 400cm ^ 2. Find the area of a rectangle whose width is equal to the side of the square, and the length is 15 cm longer.
| January 10, 2021 | education
The area of the square is S = a ^ 2.
Find the side of the square:
a = √400 = 20 cm.
Find the length (b) of the rectangle:
b = 20 + 15 = 35 cm.
The area of a rectangle is equal to the product of its sides S = a * b:
S = 20 * 35 = 700 cm2.
Answer: The area (S) of the rectangle is 700 cm2. S = 700 cm2.
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