Question

1.
From the figure below​

Answer 1

using the the congruence property we get all three sides equal to all three corresponding sides so so it is given in one triangle that the two sides are equal so in second triangle the two sides corresponding to to that two sides will also equal because both are congruent.

a/q,

3x/2=12

or, x=12×2÷3

or, x=8.