Circle - practice for 12 year olds - page 2 of 16
Number of problems found: 311
- Tree trunk
Calculate the average tree trunk with a circumference of 192 cm. - Circumference 8395
The circle's circumference is 321 dm larger than the diameter of the circle. What is the average? - Circumference 6929
Two-thirds of the circumference of the circle is 12π cm long. Calculate the area of the circle. - 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
- Circle - simple
The circumference of a circle is 683 mm. How long in mm is its diameter? - Radius
Determine the circle's radius if its perimeter and area are the same numbers. - Sprinkler 45721
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place? - Describe 5845
The tower clock has a small hand 1 m long. What path will the tip of the little hand describe in 1 day? - 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?
- Clock hands
The second hand has a length of 1.5 cm. How long does the endpoint of this hand travel in one day? - Members 82412
There are 12 girls in the circle. Girls make up 2/3 of all members. How many boys are there in the circle? - Circumference 48533
The diameter of the circle is 6.8 cm. Calculate the area of the circle to 1 decimal place. Calculate the circumference of the circle to 1 decimal place. - Perimeter 3573
The carousel wheel has a diameter of 138 meters and has 20 cabins around the perimeter. What circuit does the bike have? - Students activities
There are 28 students in the class. Twenty-one of them is involved in-ring activities. What part of the class does not attend the circle?
- Area to perimeter
Calculate the circle circumference if its area is 254.34cm2 - Bicycle wheel
The bicycle wheel diameter is 62 cm. How many times turns the bicycle on the road 1 km long? - Sprinkler 36153
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place? - Two circles
Two circles with a radius of 4 cm and 3 cm have a center distance of 0.5cm. How many common points have these circles? - Mine
The wheel in the traction tower has a diameter of 4 m. How many meters will perform an elevator cabin if the wheel rotates in the same direction 89 times?
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