Trapezoid QRST is dilated by a scale factor of 3.4 to create trapezoid Q'R'S'T'. The perimeter of trapezoid QRST is y units.
What is the perimeter in units of trapezoid Q'R'S'T'?
Responses
A (3.4)2y units(3.4) 2 y units
B (3.4y)2 units(3.4 y ) 2 units
C 3.4 + y units3.4 + y units
D 3.4y units3.4 y units
Since the trapezoid is dilated by a scale factor of 3.4, the sides of Q'R'S'T' will be 3.4 times longer than the corresponding sides of QRST.
The perimeter of Q'R'S'T' will therefore be 3.4 times the perimeter of QRST.
So the perimeter of Q'R'S'T' is 3.4 times y, which can be written as 3.4y.
Therefore, the correct answer is D) 3.4y units.