Hello,
Let y=sin^(-1)(12/13.
==>sin y=12/13
==>cos y=√(1-(12/13)²)=√(25/169)=5/13
Answer 5/13
Answer:
217.9 cm
Step-by-step explanation:
V=πr2h=π·3.42·6≈217.90087
Areashaded=areabigcircle-areasmallcircle
areacircle=pir^2
d/2=r
big diameter=20.4, so radius i 20.4/2=10.2cm
small is 10.8/2=5.4
so
big-small
pi10.2^2-pi5.4^2
pi(104.04-29.16)
pi(74.88)
using 3.14=pi
235.1232 cm^2
answer is B
Answer:
the area of the game room would be 15 yards by 10 yards
Step-by-step explanation:
you multiply the number of feet by 5
the five being the number of yards that are in a foot
