Question

In the diagram below triangle abc ~ triangle dec . What is the value of x

Answer 1

answer is d 6

Explanation:

Answer 2

the answer is D

Step-by-step explanation

the ratio of the triangles is 3:1 (you find that out because 21:7 is simplified to 3:1.

when you plug in 6 as x then you get 18:6 which simplifies to 3:1 also