Which triangle can be used to find the slope of the line shown? Triangle a or b Explain your answer.
Triangle a can be used to find the slope of the line shown.
This is because triangle a contains a right angle, which means it can be used to find the rise and run of the line. The slope of a line is equal to the rise divided by the run, which can be calculated using the dimensions of triangle a. Triangle b does not contain a right angle, so it cannot be used to accurately calculate the slope of the line.