The best answer would be C.
Hope this helps:)
Answer:
1st quartile: 1920s / 6
Step-by-step explanation:
First find the median, which is 1950s / 10. There are 5 rows behind it.
The median of those previous 5 rows is 1920s / 6.
A=bh
A/h bh/h
A/h=b
The answer s b= a/h
if u mean what i think u mean the angles are the following...
acute
obtuse
right
straight!