Step-by-step explanation:
m<C = 90°
According to the laws of cosine,
c²= a²+b²-2ab. cos(C)
c²=a²+b²-2ab.cos(90°)
c²=a²+b²-2ab.0 { cos(90°)= 0}
c²=a²+b²
a²=c²-b²
Answer:
Mean: 26.333333333333
Median: 24
Mode: 15, 17, 20, 22, 24, 27, 34, 37, 41
A