The largest angle in triangle DEF is opposite its longest side. If you know which side is longest (DE, EF, or FD), the angle opposite that side (D, E, or F) is the largest.
Chesser Ai Answer
The largest angle in triangle DEF is opposite its longest side. If you know which side is longest (DE, EF, or FD), the angle opposite that side (D, E, or F) is the largest.