Answer:
90 degree angles (perpendicular bisector of the line)
Ok, sin = prep / hyp
so, perpendicular = 1 , and hypo = 4
so, base = sq. root ( 16-1 ) = root 15
and tan = prep / base = 1 / root (15)
7.088
Step 1) get r from area= pi *r^2
2) found the centimeters
Answer:
6 1/2 minutes
Step-by-step explanation:
9 9/10 = 9.9
3 3/5 = 3.6
9.9 + 3.6 = 13.5
13.5 = 13 1/2
20 - 13.5 = 6.5 = 6 1/2
