Area of a shape - practice for 12 year olds - page 6 of 37
Number of problems found: 727
- Dimensions 42501
Find at least six different dimensions (in meters) of a rectangle with a capacity of 20 m2 - Parallelogram 4701
Calculate the area and perimeter of the ABCD parallelogram with side a = 2.7 m, va = 0.8 m, b = 1.9 m. - Triangle 3187
In a general triangle, the aspect ratio a: b = 2:3. What is the ratio of heights va: vb? - Diameter 2949
What is the diameter of a circle with an area of 35 cm square? - Rhombus HP
Calculate the area of the rhombus with height 75 cm and perimeter 16 cm. - A rectangle 11
A rectangle or athletic field is 100 yards wide and 500 yards long. How many square yards are on the football field? - A piece 3
A piece of rectangle cloth has an area of 2 4/5 meters. Its breadth is 1 1/5 meters. What is the length of the cloth? - 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 - Annulus
Two concentric circles form an annulus of a width of 10 cm. The radius of the smaller circle is 20 cm. Calculate the area of the annulus. - Area of ditch
How great will an area have a section of the trapezoidal ditch with a width of 1.6 meters above and below 0.57 meters? The depth of the ditch is 2.08 meters. - CD disc
A compact disc has a diameter of 11.8 cm. What is its surface area in square centimeters? - 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. - Trapezium zoom
How many times increase the area of the trapezoid if all sides and altitude increase 5 times? - Maximum area of rhombus
Calculate the interior angles at which the equilateral rhombus has a maximum area. - 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. - Circumference 46181
Calculate the area of a circle that has a circumference of 314 cm. - Sprinkler 36153
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place? - Perpendicular 32371
Calculate the area of a rectangular trapezoid whose perpendicular arm is 27 mm long and the bases are 33 mm and 19 mm long. - Circumference 8256
Find the height of a diamond with a circumference of 34m and an area of 51m²
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