Perimeter - practice for 11 year olds - page 6 of 12
Number of problems found: 228
- Circumference 6651
Calculate the circumference of a circle if its area is 706.5 cm² - Diameter 6348
How many m did a wheel with a diameter of 22dm pass if it stopped after 30 turns? - Circumference 4712
If you enlarge the side of the diamond by 4 cm, its circumference will be 20 cm. How long was the side of the original diamond? - Fence of the garden
The garden has dimensions of 5m and 400cm. How many meter meshes are needed for fencing the plot?
- Velocipede
The front wheel of the velocipede from the year 1880 had a diameter 1.8 m. Suppose the front wheel is turned again once, then the rear wheel six times. What was the diameter of the rear wheel? - Quarter circular
The wire hooked around the perimeter of the quarter-circular arc has a length of 5π+20. Determine the radius of the circle arc. - Rectangle 64194
The rectangle has an area of 126 cm². The size of one side of the rectangle is 12 cm. Calculate the perimeter of the rectangle in cm. - Parallelogram 49281
The circumference of the parallelogram measures 2.8 m. The length of one of its sides is equal to one-seventh of the entire circumference. Calculate the sizes of the sides of this parallelogram. - Rectangular 14353
The rectangular garden measures 20 meters and 180 decimetres. How many meters of fencing need to be purchased?
- Dimensions 14261
The land has a rectangle with dimensions of 38m and 27.6m. How many meters of wire do we need to fence it and put the wire in triplicate? - Circumference 10342
Calculate the area of the rectangle if its circumference is 24cm and one side is 7.2cm long - Circumference 8771
Calculate a diamond's area with a circumference of 51.2 cm and a height of 9.6 cm. - Circumference 6555
The square picture has a circumference of 28 dm, and its frame is 7 cm wide. What is the outer circumference of the frame? - Ratio - rectangle
The rectangle has dimensions of 6 cm and 9 cm. How many times increases the area and its perimeter when its dimensions increase in the ratio of 5:3?
- Minute-hand
How long will a large (minute) hand travel on the clock for 48 minutes if its length is 56 cm? - Rectangle 80701
One side of the rectangle has length a=9/5 cm, and the length of side b is 7/10 cm greater than the length of side a. Calculate the perimeter and area of the rectangle. - Calculate: 36721
In the trapezoid, it is given: all four sides a = 51 cm; b = 30 cm; c = 18 cm; d = 27 cm; and height v = 24 cm; Calculate: perimeter o=? and area S=? - Round table
The round table has a diameter of 78 cm. A tablecloth should be sewn on it, extending around the table by 10 cm. How many centimeters of ribbons need to be bought for edging? - The perimeter 3
The perimeter of a rectangle is 35 cm. The length ratio to its width is 3:2. Calculate the rectangle's dimensions.
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