Perimeter - 6th grade (11y) - math problems

Number of problems found: 104

• 6-gon
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?
• Odometer
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?
• Clocks
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.
• Floor
Rectangular floor of living room has a length 5.4 meters and a circumference 17.2 meters. What is its width?
• Pulley
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
• Table
Find the circumference of the table, where the long side is 1.28 meters and the short side is 86 cm.
• Athlete
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?
• Circle
How big is area of circle if its circumference is 80.6 cm?
• Well
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
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?

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Perimeter - math word problems. Examples for 6th grade (the sixth graders).