Level:
Project ID:
1103068003
Accepted:
1
Clonable:
0
Easy:
0
Find the missing real positive constant \( a \) so that the area of the yellow triangle indicated in the picture is \( 12 \) square units.
\( a=\frac23 \)
\( a=\frac43 \)
\( a=1 \)
The constant \( a \) can not be determined from the picture.