seaans20391
25.02.2020 •
Mathematics
1.)What is the volume of a right circular cylinder with a radius of 5 cm and a height of 12 cm?
2.)The volume of a cylinder is 108π cm³ and its height is 12 cm.
What is the length of the cylinder's radius?
Enter your answer in the box.
cm
3.)What is the volume of a right circular cylinder with a base diameter of 18 yd and a height of 3 yd?
Enter your answer in the box. Express your answer using π .
yd³
4.)What is the volume of a right circular cylinder with a diameter of 46.25 cm and a height of 18.5 cm?
Enter your answer in the box. Use 3.14 for pi and round only your final answer to the nearest hundredth.
cm³
5.)A right circular cylinder has a height of 2214 ft and a diameter 225 times its height.
What is the volume of the cylinder?
Enter your answer as a decimal in the box. Use 3.14 for pi and round only your final answer to the nearest hundredth.
ft³
Plz help
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Ответ:
See attached picture
Ответ:
1) 942 cm³
2) 3 cm
3) 243π yd³
4) 31064.54 cm³
5) 4.31 × 10¹⁴ ft³
Step-by-step explanation:
1) π×5²×12 = 942
2) 108pi = π×r²×12
r² = 9
r = 3
3) diameter = 18
radius = 9 yd
Volume = π×9²×3 = 243π yd³
4) diameter = 46.25
radius = 23.125
Volume = π×23.125²×18.5
= 31064.53515625 = 31064.53
5) diameter = 225×2214 = 498150
radius = 249075
Volume = π×249075²×2214
= 431,288,166,770,775
= 4.31 × 10¹⁴
Ответ: