The sides of a triangle are in the ratio 3:4:5. If the perimeter is 24 cm, what is the length of the longest side?

Ask questions is the best answer. Effective teaching involves active student engagement, and asking questions stimulates critical thinking, encourages participation, and helps the teacher assess student understanding. While lectures, homework, and technology can be valuable tools, they are not as directly indicative of a teacher’s ability to engage and inspire students.