All you would do is multiply .9 by 20
.9*20=18
90% of 20 is 18
Answer:
Parallel
Step-by-step explanation:
ok you need formula for surface area.
SA = πrh+2πr^2
Plug in 25 and 5
SA = 2π(5)(25)+2π(5)^2
SA = 10pi*25 + 2pi(25)
SA = 250pi + 50pi
SA = 300pi
Hope this helps :)
Jeron
..........solve it like an equation
