100%-20%=80%
80/100=0.8
64/0.8=80
$80
Hope this helps :)
They both are 180 degrees.
One possible difference is that a straight angle is just a single angle measuring 180 degrees, while a linear pair supplementary angle are pairs of adjacent angles that add up to 180 degrees.
The answer is 150.8. there is a cylindrical surface area calculator online if you have anymore related questions
i don’t know but you could prob use photo math. that would hell