Area of a shape + functions - practice problems - page 2 of 25
Number of problems found: 482
- Circumference 69934
You know the ratio of the circumference of the circle to the area is 4:9. What is the circle's diameter? - The ratio
The ratio of the lengths of the two circles is 5:2. Find the ratio of a a) the radii of these circles b) the areas for these circles - Ratio of sides 2
The ratio of the side lengths of one square to another is 1:2. Find the ratio of the area of the two squares. - Area decrease
If the area of the square decreases by 19%, by how much percent does the side of the square decrease?
- Squares 5479
Draw two stone squares. They have a total of 34 stones. What edges do the squares have? - Percentage 4138
What percentage does the white color on the Czech flag occupy? - Mysterious area
The trapezoid ABCD is given. Calculate its area if the area of the DBC triangle is 27 cm². - Triangle 3187
In a general triangle, the aspect ratio a: b = 2:3. What is the ratio of heights va: vb? - Trapezoid - central median
The central median divides the trapezoid into two smaller trapezoids. Find the ratio of its areas.
- 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. - Square 8198
In 2 hours, 100m square, what is an area in 3 hours? - Diameter 4111
How many balls with a diameter of 3.25 cm with a mixture in a circle with a diameter of 27 cm? - Playground 2908
The fencing of the square playground cost € 462, while the 1m fencing cost € 11. What is its playground area?
- Masons
One mason casts 30.8 meters square in 8 hours. How long casts four masons 178 meters square? - Pipeline
How much percent has changed (reduced) the pipe cross-section area if the circular shape changed to square with the same perimeter? - Square 81238
A forest with a square plan has an area of 4 square km. What side will the square have on a 1:50,000 scale map? - 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? - Smallest 32811
Which diamond with a side length of 7.5 cm has: a / largest area, b / smallest area
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