One angle of a triangle measures 34. A second angle measures 81. What is the measure of the third angle of the triangle?
A: 65
B: 99
C: 115
D: 146

Find the area of the regular hexagon if a side is 20 cm.

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Which statements are true about additional information for proving that the triangles are congruent check all that apply