Answer: A plane has two dimensions because it is a flat surface that has length and width but no depth.
The answer is the third one
Angels on a triangle is 180°
so you add 75 and 50 which gives you 125 then u take away that by 180 to find x
and that your answer
I'm going to let you work it out since its easy question
16r^2+ 2r -4r
16r^2 - 2r
2r ( 8r -1)
