What is the measure of triangle trs in degrees?

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

This question awards 100 ! i really don’t want to fail i will also mark you !