Answer:
i) pi×4500 cm³
ii) pi×600 cm²
iii) 14 liters
Step-by-step explanation:
in general : the diameter is 30 cm, the radius is half of that (15 cm)
i)
the volume of a cylinder is base area times height.
Vc = pi×r²×h = pi×15²×20 = pi×225×20 = pi×4500 cm³
ii)
similar to volume, the side "mantle" area of the cylinder is the circumference of the base area times height.
surface area of the cylinder mantle is
Scm = 2×pi×r×h = 2×pi×15×20 = pi×30×20 = pi×600 cm²
iii)
for this we need now to do the multiplication with pi and then convert the cm³ to liters.
1 liter = a cube of 10 cm side length = 10×10×10 = 1000 cm³
pi×4500 = 14137.17 cm³ = 14.13717 liters or rounded 14 liters
Answer:
Anylize the results
Step-by-step explanation:
Answer:
1,000
Step-by-step explanation:
47 to 0.047 moves 3 places
47, 4.7, 0.47, 0.047
this means that the power of then used should have 3 0's
making the power of ten 1,000
Answer:
0.779
Step-by-step explanation:
1(58)+2(24)+3(8)+4(39)=286
286/367=0.779
PLS GIVE BRAINLIEST!!!
All the number end in a zero 10 20 30 40 50 60 70 80 90
