Area of a shape - practice for 13 year olds - page 6 of 46
Number of problems found: 909
- 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? - Diagonal to area
Calculate the area of a rectangle in which the diagonal length is 10 cm. - Pipe cross section
The pipe has an outside diameter of 1100 mm, and the pipe wall is 100 mm thick. Calculate the cross-section of this pipe. - Rhomboid
Calculate the circumference and area of the rhomboid with sides 19 and 20, with their angle 40°.
- Calculate 25621
Calculate the area of a regular hexagon inscribed in a circle with a radius r = 7 cm. - Playground 2908
The fencing of the square playground cost € 462, while the 1m fencing cost € 11. What is its playground area? - Flowerbed 2540
The flowerbed has a diamond shape with side a = 35 dm. The longer diagonal is 56 dm long. Calculate the area of the flowerbed. - Is right triangle or not
If right triangle ABC, have sides a=13, b=11.5, c=22.5. Find area. - Diagonals of diamond
Find the area and circumference of the diamond ABCD with 15m and 11m diagonals.
- Ace
The length of segment AB is 24 cm, and the points M and N are divided into thirds. Calculate the circumference and area of this shape. - Masons
One mason casts 30.8 meters square in 8 hours. How long casts four masons 178 meters square? - RT 10
The area of the right triangle is 84 cm², and one of its catheti is a=10 cm. Calculate the perimeter of the triangle ABC. - Isosceles III
The base of the isosceles triangle is 17 cm area 416 cm². Calculate the perimeter of this triangle. - Pentagon
Calculate the area of a regular pentagon, which diagonal is u=16.
- Circle in rhombus
In the rhombus is an inscribed circle. Contact points of touch divide the sides into parts of length 14 mm and 9 mm. Calculate the circle area. - Circumference 72414
Calculate the diagonal and the area of a square if its circumference is 10 centimeters. - Percentage 58703
In the park, with an area of 1413 m2, there is a circular fountain with a diameter of 6 m. What percentage of the park does the fountain occupy? - Containing 8340
Calculate the perimeter of a square containing 9 acres. - Described 4187
Find the area of the circle that is a) inscribed, b) described 6.32 cm square.
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