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3 years ago

10

The perimeter of rectangle ABCD is 42 cm and the area is 80 cm2. Which equation can be used to find the dimensions of the rectan

gle? (Hint: Set up a system of equations).
xy + 2x + 2y = (42)(80)
x^2 + 80x - 42 = 0
x^2 - 42x + 80 = 0
x^2 - 21x + 80 = 0

1 answer:

Nikolay [14]3 years ago

4 0

Don't hold me accountable but I believe it is the 2nd equation.

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