Question

I need help ASAP!!!!!!!!! PLZZZ

Answer 1

b

Explanation:

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

`(AB)/(XY)` =
`(BC)/(YZ)` , substitute values

`(15)/(10)` =
`(21)/(YZ)` ( cross- multiply )

15YZ = 210 ( divide both sides by 15 )

YZ = 14 → b