Write the definition of an acute angle as a biconditional. An angle is acute if and only if it measures greater than 90°.

An angle is acute if and only if it measures less than 90°.

There is no biconditional statement for this definition.

If an angle measures less than 90°, then it is an acute angle.

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42