Answer:
3.14(3.1)^2 = 30.1754
Step-by-step explanation:
pi times radius squared - area of a circle
So the radius is 5 cm
and we are given the volume at 225 cm³
now breakdown the volume formula for a cone which is V equals 1/3 Bh
b= pi r squared
now substitute everything in
225 equals 1/3 pi(5)^2 Times h
since we don’t know H that is what we’re solving for
225= 1/3 pi(25) times h
multiple 3/1 on both sides to cancel the 1/3
675= 25(3.14) times h
675= 78.5 (h)
h= 675/78.5
h=8.60 cm
Answer:
each lamp would cost $14
He would spend $126 on 9 lamps
Step-by-step explanation:
Oh well, she babysitted for $63/$9 = $7
The answer to you question is 5353 because height=13428.7 x tan (21’44’) = 5353
