Practice problems of the circle
Number of problems found: 826
- For each
For each pair of expressions, circle the greater product without finding the product. (write 1=left expr, 2=right expr) a. 3/4 x 2/3 and 3/4 x 1/2 b. 2/3 x 3 1/4 and 4/3 x 3 1/4 c. 3/8 x 3/8 and 3/8 x 1/2
- Aluminum 72964
The aluminum disc has a diameter of 96 mm. 10 discs are cut from a sheet metal sheet 1 m long and 10 cm wide. What% is waste?
- Treadmill 70904
The runner circled the track 3 times. If he went around it once more, he would run 1km. What is the radius of the treadmill?
- Circumference 69934
If you know that the ratio of the circumference of the circle to the area of the circle is 4: 9 Then the diameter of the circle is:
- Baking a cake
Christy is baking a cake that has a 9 inch diameter. She wants to cover the top of the cake with butter cream icing. How much icing will she need?
- Circumference 65134
Circle K has a radius of 130 mm, and circle L has a diameter of 50 mm. By how many millimeters is the circumference of circle K greater than the circumference of circle L? Round the result to a whole number. Use the value π= 3.14 in the calculations.
- Attended 63784
The math circle is attended by h = 10 boys and k = 5 girls. a) How many students go to the ring? b) How many students are in the ring if five girls and three boys are missing
- Circumference 62124
The wheel circumference of the truck is 2 meters. The car covered a distance of 20km. How many times did the wheel have to turn?
- The crane
The construction crane has a 20m long arm. What area of construction in ares can it handle from this crane if it rotates around its axis?
- The formula
The formula for the area of a circle is (Pi x r x r) where r = measure of the radius and Pi = 3.14. What is the area of a circle whose radius measures 1 cm?
- The ratio
The ratio of the lengths of the two circles is 5: 2. Find the ratio of a a) the radii of these circles b) the areas for these circles
- Determine 58963
The field has the shape of a circle. If he wants to run 800m, Honza has to go around the field 2.5 times. Determine the diameter of the pitch for the whole meter
- The tire
The tire of a car has a radius of 10.5 inches. How many revolutions does the tire need to make for the car to travel 13,200 inches? Round to the nearest whole revolution.
Rewrite the following as a division statement if there are eight cakes and each person gets 1/12 of a cake, how many people get cake?
- The spinner
The spinner below is spun 12 times. It landed on I 4 times, II 7 times, and III 1 time. What is the difference between the experimental and theoretical probabilities of landing on the II?
- One ball
One ball of dough can be stretched into a circle to make a pizza. After the pizza is cooked, it is cut into 8 equal slices. How many slices of pizza can you make with 3 balls of dough? Solve this problem any way you choose.
- Round cake
What is the area of a round cake with a radius of 5cm?
- Pumpkin pie
Have some pumpkin pie. One half of the pie is cut into 4 equal slices, the other half is cut into 3 equal slices. After eating one of the larger slices (on the 3 piece side), I wonder if I will eat more if I have one more from the 3 side, or two from the
- Steering 49363
The steering wheel has a diameter of 40 cm. It is acted upon by a pair of forces with a torque of 27 newton meters. How much force does it exert on each side of the steering wheel?
- Calculate 48613
Calculate the radius of the circle if its diameter is 16.2 cm. Express the result in meters.