Question

help me is my third time posting this can anyone please help me 2 questions can at least answer 1 please

Answer 1

For 11, x=18

Explanation:

Use a ratio to solve for x since the triangles are similar

16/20=(16+12)/(20+x-3), first simplify both sides

4/5=28/(17+x), cross multiply

4(17+x)=5*28

17+x=5*7

x=35-16

x=18