Question

please solve it step by step explain​

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

Area of a Trapezium = $\frac{base *Base}{2}$x Height

Let the lengths be 3a and 7a

                   60          = 3a x 7a x 12

                                        2

                         60   = 21a x 6

                         60   = 126x

                           x    = 60/126

                          x     = 10 / 21