Ineed with questions right
1.which of the following equations will yield the surface a...
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Mathematics, 16.01.2020 21:31 mayhy100
Ineed with questions right
1.which of the following equations will yield the surface area of a cylinder?
a. sa = 2lw + 2lh + 2wh
b. sa = 2rh + 2r2
c. sa = 2b + ph
d. sa = r2h
2. the radius of a cylinder is measured in meters. what unit will the surface area be measured in?
a. meters
b. cubic meters
c. kilometers
d. square meters
3. the dimensions of a pentagonal prism are quadrupled. how will the changes to the prism’s dimensions affect the surface area of the prism?
a. increase by a factor of 4
b. increase by a factor of 16
c. increase by a factor of 64
d. surface area will remain the same
4. a cylinder has a circular base with a diameter that measures 9 inches. determine the radius of the base of the cylinder.
a. 3 inches
b. 4.5 inches
c. 18 inches
d. 81 inches
5. a cylinder has a diameter of 5 centimeters and a height of 50 millimeters. which of the following steps should be done first in order to find the surface area of the cylinder?
a. convert the diameter and the height to the same unit
b. determine the radius and multiply by 2π
c. calculate the circumference of the circle
d. multiply the circumference of the circle by the height of the cylinder
6. in order to find the number of gallons of paint needed to paint the exterior surface of a barrel, which of the following should be determined?
a. the volume of the barrel
b. the height of the barrel
c. the surface area of the barrel
d. the perimeter of the barrel
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