Surface area of a cylinder=(2xxradiusxheight)+(xradius^2x2)
Radius=Diameter/2
Radius=6/2
=3 m
Height=14 m
Surface area=(2xx3x14)+(x3^2x2)
Surface area=263.8937829+56.54866776
Surface area=320.4424507 m^2
=320.4 m^2
Tin of paint: 90 m^2/3.70 euros
Number of tins needed=320.4/90
=3.56 cans of paint
Price=3.56x3.70
Price=13.172 euros
Hope this helps!
P.S. the “^” sign means “to the power of”
ʕ•ᴥ•ʔ
Answer:
12 29
/48 in mixed number form,
≈ 12.6 as a rounded decimal
Step-by-step explanation:
Multiply all three numbers together for the volume.
Answer:
0.4
Step-by-step explanation:
Radius of inner circle = r
Radius of entire circle = r + r + r + r + r = 5r
Probability that an arrow hitting the target will land on inner circle ;
Area of inner circle / area of entire circle
Recall :
Area of circle = πr²
Hence ;
πr² / π(5r)² = πr² / π25r² = 1 / 25 = 0.4
