The length of a rectangle is 2 centimeters less than its width. What are the dimensions of the rectangle if its area is 255 squa
re centimeters?
Find length and width
1 answer:
Answer:
Step-by-step explanation:
<u>Let the length be x:</u>
A = lw ⇒ formula for the area of rectangle
A = 255 cm²
- x(x+2) = 255
- x^2 + 2x + 1 = 256
- (x+1)^2 = 16^2
- x + 1 = 16
- x = 15
l = 15 cm, w = 17 cm
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