Examples of area of plane shapes - page 30 of 135
Number of problems found: 2697
- Rhombus
The rhombus has diagonal lengths of 4.2 cm and 3.4 cm. Calculate the length of the sides of the rhombus and its height. - Triangle area
The triangle is divided into three parts. The part at the vertex C occupies a third of the area of the triangle, the part at the vertex B is two-fifths of the area of the triangle, and the remaining part at the vertex A has an area of 4 m². Calculate the - Bathroom 2
A bathroom is 2.4 meters long and 1.8 meters wide. How many square tiles, 1 dm on each side, will be used to cover it? - Stadium area
When the runner goes around the circular stadium five times, he runs 157 km. What area does the stadium occupy? - Diameters of circles
How many percent of the area of a larger circle is a smaller circle if the smaller circle has a diameter of 120 mm and a larger one has a diameter of 300 mm? - Equilateral triangle
The equilateral triangle has a 23 cm long side. Calculate its area. - Rectangles in circle
I need to fill a circle with a diameter of 4900 cm with how many rectangles, 125x60 or 100x50 cm. - Hypotenuse length
Calculate the hypotenuse length if you know the area of an isosceles right triangle that is 24.5 cm². - Path paving cost
A 2.4 m wide path will be paved around a circular lake with a diameter of 8.2 m. How much will the paving cost when 1 m square costs 350 kc? - Circular ring
A square with an area of 16 centimeters is inscribed circle k1 and described to circle k2. Calculate the area of the circular ring, which circles k1, and k2 form. - Cycling track
The cycling racetrack has the shape of a circle with an area of 2 ha. How long will a cyclist drive one-third of a kilometer in a perimeter? - Unknown number 24
I think the number: a) It is equal to the area of a square with a perimeter of 12. What is this number? b) Its half is seven times bigger than its quarter. What is this number? - Isosceles trapezoid
Calculate the circumference and area of the isosceles trapezoid if you know the bases' sizes are 8 and 12 cm and the arms' sizes are 5 cm. - Carpet
What is the price of a square carpet side length of 3.25 m if a one-meter square costs 230 CZK? - Roof tiles
The roof has a trapezoidal shape with bases of 15 m and 10 m, and its height is 4 meters. If a one-meter square should be used for eight tiles, how many tiles will be needed? - Percentage of waste
In a square plate with a side 58 cm, we cut four same circles. Calculate the percentage of waste. - Diamond
The rhombus has a side 22 cm and one diagonal 35 cm long. Calculate its area. - Rectangle - sides
A rectangle has an area of 340 cm². The shorter side is 3 cm less than the longer side. What is the perimeter of the rectangle? - Without Euclid laws
Right triangle ABC with a right angle at the C has a=5 and hypotenuse c=22. Calculate the height h of this triangle without the use of Euclidean laws. - Isosceles III
The base of the isosceles triangle is 18 cm area 250 cm². Calculate the perimeter of this triangle.
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