Find the scale factor and ratio of perimeters for a pair of similar trapezoids with areas 81 cm² and 49 cm².
9
The scale factor is
(Simplify your answer.)
The ratio of perimeters is (Simplify your answer.)

Can someone help me solve this??

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

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