Geometry
Area of Circles & Volume of Cylinders and Cones
Name Date Period
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-1-
Find the circumference of each circle. Use 3.14 for the value of p. Round your answer to the
nearest tenth. 1)
10.2 km
2)
14 mi
Find the area of each. Use 3.14 for the value of p. Round your answer to the nearest tenth. 3)
4 in 4)
24 mi
Find the radius of each circle. Use 3.14 for the value of p. Round answer to the nearest tenth. 5) circumference = 56.5 yd 6) area = 437.4 yd² Find the circumference and area of each circle. Use 3.14 for the value of p. Round your
answers to the nearest tenth. 7)
4.7 ft
8)
10 ft
Find the exact circumference and area of each circle. 9)
4 in
10)
18 cm
11-12. Find the 11) radius of the circle and the 12) diameter of the circle. 11) circumference = 6p in 12) area = 100p in²
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-2-
Find the volume of each figure. Use 3.14 for the value of pi. Round your answers to the
nearest tenth, if necessary. 13)
5 cm
2 cm
14)
9 m
8 m
15)
2 in
1 in 16)
4 in
4 in
17)
8 cm
6 cm
18)
9 cm
3 cm
19-20. Applications of cylinders and cones. 19) A cylindrical storage tank has a volume of 113 cubic feet. If it has a radius of 2 feet, what is its
height? Use 3.14 for pi. Round to the nearest whole number of feet.
20) A regular snow cone has a 1 inch radius and is 6 inches tall. A giant snow cone has a 2 inch
radius and is also 6 inches tall. To the nearest whole number, how many times bigger (by
volume) is the giant snow cone compared to the regular snow cone?

Airplane speeds are measured in three different ways: (1) indicated speed, (2) true speed, and (3) ground speed. the indicated airspeed is the airspeed given by an instrument called an airspeed indicator. a plane’s indicated airspeed is different from its true airspeed because the indicator is affected by temperature changes and different altitudes of air pressure. the true airspeed is the speed of the airplane relative to the wind. ground speed is the speed of the airplane relative to the ground. for example, a plane flying at a true airspeed of 150 knots into a headwind of 25 knots will have a ground speed of 125 knots. the problems below refer to static and dynamic pressure. static pressure is used when a body is in motion or at rest at a constant speed and direction. dynamic pressure is used when a body in motion changes speed or direction or both. a gauge compares these pressures, giving pilots an indicated airspeed. in problem #s 1 and 2, use the following information. the indicated airspeed s (in knots) of an airplane is given by an airspeed indicator that measures the difference p (in inches of mercury) between the static and dynamic pressures. the relationship between s and p can be modeled by s=136.4p√+4.5. 1. find the differential pressure when the indicated airspeed is 157 knots. 2. find the change in the differential pressure of an airplane that was traveling at 218 knots and slowed down to195 knots. in problem #s 3 and 4, use the following information. the true airspeed t (in knots) of an airplane can be modeled by t=(1+a50,000) ⋅ s, where a is the altitude (in feet) and s is the indicated airspeed (in knots). 3. write the equation for true airspeed t in terms of altitude and differential pressure p. 4. a plane is flying with a true airspeed of 280 knots at an altitude of 20,000 feet. estimate the differential pressure. explain why you think your estimate is correct.

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship