Question

JLK ~ PQR Find the value of x.

Answer 1

x = 12

Explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

`(JL)/(PQ)` =
`(JK)/(PR)` , substitute values

`(x)/(36)` =
`(15)/(45)` =
`(1)/(3)` ( cross- multiply )

3x = 36 ( divide both sides by 3 )

x = 12

Answer 2

12

Explanation:

if their similar then find the proportion with a cross multiplication equation

x/36 = 13/39

x*39 = 36*13

39x = 468

x = 468/39

x = 12