Area of a shape + functions - practice problems - page 3 of 25
Number of problems found: 488
- Smallest 32811
Which diamond with a side length of 7.5 cm has: a / largest area, b / smallest area - Circumference 3589
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Isosceles triangle
Find the area of an isosceles triangle whose leg is twice the base, b=1 - Squares
From the square with the integer side, cut out the square with the integer side so that the residual area is 100. What is the longest possible side of the larger square?
- Area of rectangle
How many times will we increase the area of the rectangle if we increase twice the length and at the same time we decrease the width by half? - Screens
The area of a 25-inch TV screen is 300 inch² the area of a 40-inch TV screen is 768 inch². The area of the smaller screen is what percent of the area of the larger screen? - Cutting square
We cut the circle with the highest possible diameter from a square with a side of 30 cm. How many percents of the square area is this circle? - The perimeter
The perimeter of equilateral △PQR is 12. The perimeter of the regular hexagon STUVWX is also 12. What is the ratio of the area of △PQR to STUVWX? - Enlarged rectangle
The rectangle has dimensions of 8 cm and 12 cm. We enlarge it in a ratio of 5:4. What are the circumference and the area of the enlarged rectangle?
- 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? - Percentage of waste
In a square plate with a side 75 cm, we cut four same circles. Calculate the percentage of waste. - Parcel
Both dimensions of the rectangular parcel were increased by 31%. By how much % has it increased its acreage? - Equilateral triangle
Calculate the side of an equilateral triangle if its area is 886 mm². - Father and son
Father and son are 74 years old together. Son is 30 years younger than father. How old is the son?
- Rectangle - sides ratio
Calculate the area of a rectangle whose sides are in ratio 9:14 and perimeter is 388. - Percentage 82623
The square in the picture has a side length of 6 cm. What percentage of the area is the colored part? - Reduced 81099
A square has a side length of 25 cm. How big is its area if the side is reduced by 25%? - Football 14841
The tennis court measures 40.20 meters. The football field measures 40.90 meters. How many times is the football field compared to the tennis court? - Diameter 6289
A circle with the largest possible diameter is cut from a square with a side length of 35 cm. What percent of the square area is waste?
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