Step-by-step explanation:
lets take a look....
In order to find the perimeter of a triangle you have to get the sum of all sides. In other words,
Blue triangle:

Red triangle:

Difference:

Answer:
The one closest to the 20 or the one below the 16 or above the 18
Step-by-step explanation:
THERE WAS NO NUMBER LINE FOR ME TO HELP YOU!!!!!!
Answer:
420
Step-by-step explanation:
9660÷23=420
and 420×23 =9660