$x^2$
[asy]
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[/asy]
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[asy width=400]
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[/asy]
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[asy width=200 bg=white]
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[/asy]
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[asy width=200]
size(5cm);
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);
[/asy]
size(5cm);
pair A = (0, 0);
pair B = (4, 0);
pair C = (1.5, 3);
draw(A--B--C--cycle);
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, N);