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A rectangle has a height of 4x and a width of 3x + 1.​
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A rectangle has a height of 4x and a width of 3x + 1.​

User Mattrick
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Answer:

area of rectangle= length x width

height 4x and width = 3x+1

area of recatangle=4x(3x+1)

=12x^2+4x

perimeter of recatangle=4x+3x+1+4x+3x+1=14x+1

User Eugene Pakhomov
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