Quadrilateral A has side lengths 6, 9, 9, and 12. Quadrilateral B is a scaled copy of Quadrilateral A with its shortest side of length 2. What is the perimeter of Quadrilateral B?

1 Answer
sjc
Dec 9, 2017

#12#

Explanation:

perimeter of Quad A#=6+9+9+12=36#

method 1

Quad B the shortest length is 2 so all lengths have been scaled down by a scale factor of 3

Perimeter Quad B#=2+3+3+4=12#

method 2

scale factor of linear measurements is 3

perimeter Quad B# =36-:3=12#

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