Perimeter - practice for 12 year olds - page 4 of 17
Number of problems found: 325
- Perimeter of the circle
Calculate the perimeter of the circle in dm, whose radius equals the side of the square containing 0.49 dm². - 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? - Wheel
What is the wheel diameter if the 0.57 km track turns 106 times?
- Square
If we increase one side of the square by its one-half, then the square perimeter increases by 10 cm. What is the side of the square? - Rhombus
Find the length of the other diagonal and the area of the rhombus. The perimeter of a rhombus is 40 cm, and one of the diagonals is of length 10 cm. - Centimeters 72134
The area of the square is equal to 1024 square centimeters. Calculate the perimeter of the square and the length of the side a. - Garden 70324
The garden is 36m long and 12m wide, and the gate is 3m wide. Is 90 m of wire mesh enough to fence the garden? - Circumference 46181
Calculate the area of a circle that has a circumference of 314 cm.
- Circumference 8256
Find the height of a diamond with a circumference of 34m and an area of 51m² - Circumference 3170
Suppose we enlarge the side of the square by half the length, and the circumference of the square increases by 24 cm. Calculate the original side length. - Square field
The perimeter of a square field is 64 m. Find the cost of cementing the field at the cost of 240 USD per square meter. - A rectangular 6
A rectangular sheet of paper is 6 2/3 cm long and 4 1/2 cm wide. Find its perimeter. - Perimeter - rectangle
Find the perimeter of the rectangle. A rectangle with a base of (3 5/6) m and a height of (2 3/7) m Its perimeter is x= meters. (Use fraction in your answer. )
- Perimeter of rhombus
The area of the rhombus is 32 cm². One side measures 10 cm. The height on the other side measures 5 cm. What is the circumference of this rhombus? - The central
The central angle of a sector is 30°, and the radius is 15 m. Determine its perimeter. - Central angle
The circle has a diameter of 46 cm. What is the arc length corresponds to a central angle of 30°? - Clocks
The length of the minute hand is 12 cm. What track in meters will its endpoint describe in a week? - Rhombus sides
If you decrease the side of the rhombus by 30 mm, its circumference will be 70.8 mm. How long was the side of the original rhombus?
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