Question

Find the lenght of x

Answer 1

x = 7

Explanation:

The smaller and larger triangles are similar so correspond sides are in the same proportion.

therefore x / 3.5 = 4/2

x / 3.5 = 2

x = 2*3.5 = 7

Answer 2

`(2)/(3.5) = (4)/(x) \\ x = (4 * 3.5)/(2) = 7`