Question

AC = 17 and DB = 2x+5. Find the value of x in the trapezoid belo А D B C

Answer 1

Trapezoids line segment

In a trapezoid both diagonals have same length

because AB = ~ DC

Then this means

AC = DB

17 = 2x + 5

Now isolate x variable

17 - 5 = 2x

(17-5)/2 = x

6 = x