The answer is 23. you take .4 and times it by the first number, then times it by that number until you have 10 numbers. then add all of those numbers up
The answer is 4,374 and the math is quite simple. A calculator
Number 10:
All angles in a triangle =180 degrees
so add the first to and subtract that by 180
166 degrees
180-166=14
so x=14 degrees
To be honest I just know that #1 is 143 (I think)
Answer:
10/8, 20/16
Step-by-step explanation:
