Question

What is the value of x?

Answer 1

x=4

Explanation:

By SAS we know that

`\triangle ABE \sim \triangle ADC`

by a ratio of

`1:2`

so we have

`(BE)/(DC)=(1)/(2)\\\\2BE=DC\\\\2(x+2)=12\\\\2x+4=12\\\\2x=12-4\\\\2x=8\\\\x=4`