On a piece of paper, use a protractor to construct a triangle with angle measures of 50° and 70º.
what is the measure of the third angle?
a 60°
b 80°
c 100°
d 180°

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

pi x^2

step-by-step explanation:

pi times x squared