Question

Can someone help me with this math problem please

Answer 1

Explanation:

As the triangles are similar so,

3/9 = 4/12 = 4.5/k

Taking 3/9 and 4.5/k Then

`(3)/(9) = (4.5)/(k) \\ \: cross \: multiply \\ k \: = (9 * 4.5)/(3) \\ k \: = 13.5 \\hope \: it \: will \: help`