Question

The polygons are similar. Find the value of x

Answer 1

The value of X is 9!

Answer 2

we can write as a proportion
big side/ small side = big side / small side
16/12 = x-1 / 6
Simplify
4/3 = x-1 / 6
multiply both sides by 6
24/3 = x-1
simplify
8 = x - 1
add 1 to both sides
9 = x

Hope this helps