Perimeter - 6th grade (11y) - math problems
Number of problems found: 104
Perimeter of regular hexagon is 113. Calculate its circumradius (radius of circumscribed circle).
- Coal mine
The towing wheel has a diameter of 1.7 meters. How many meters does the elevator cage lower when the wheel turns 32 times?
The odometer is driven by rotation of the wheel whose diameter is 65 cm. After how many rotations the wheel turns counter to next kilometer?
How long track travel the second hand in 46 hours, the end of which is 4 cm long.
- Circle from string
Martin has a long 628 mm string . He makes circle from it. Calculate the radius of the circle.
Rectangular floor of living room has a length 5.4 meters and a circumference 17.2 meters. What is its width?
On wheels with a diameter of 40 cm is fixed rope with the load. Calculate how far is load lifted when the wheel turns 7 times?
- The equator
Calculate the length of the equator. Calculate a radius of 6378 km. Round to the nearest thousand. - Procedure and calculation
Find the circumference of the table, where the long side is 1.28 meters and the short side is 86 cm.
How long length run athlete when the track is circular shape of radius 120 meters and an athlete runs five times in the circuit?
- The parallelogram
The parallelogram has one side 2 dm long, which is one-sixth of its circumference. How many cm does the other side of the parallelogram measure?
- Bicycle wheel
After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
- Bicycle wheel
Bicycle wheel diameter is 62 cm. How many times turns the bicycle on the road 1 km long?
How big is area of circle if its circumference is 80.6 cm?
Rope with a bucket is fixed on the shaft with the wheel. The shaft has a diameter 50 cm. How many meters will drop bucket when the wheels turn 15 times?
- Bike wheel
The bike wheel has a radius of 30cm. How many times does it turn if we go on a 471m bike?
- A bicycle
A bicycle wheel has a diameter of 63 cm. Calculate how many times the wheel turns round in travelling 19.8 km .
Cellar for storing fruit has a rectangular base with sides 14 m and 7 meters. You should paint sidewall to 2 m. How m2 surface must be painted?
- A bug
A bug was sitting on the tip of a wind turbine blade that was 24 inches long when it started to rotate. The bug held on for 5 rotations before flying away. How far did the bug travel before it flew off? Exact answer.
- The playground
The playground has the shape of a square with a side of 64 m. It is fenced on three sides. What is the area of the playground and how long is its fence?
Perimeter - math word problems. Examples for 6th grade (the sixth graders).