Examples of area of plane shapes - page 24 of 129
Number of problems found: 2563
- Reduced 81099
A square has a side length of 25 cm. How big is its area if the side is reduced by 25%? - Equilateral 80573
The field has the shape of an equilateral triangle. Calculate its area if you know that the side is 280 meters long. - Swimming 78124
A 16 m square swimming pool has an area of 1 m² on the city plan. What is the scale of the city plan? - Circumference 69934
You know the ratio of the circumference of the circle to the area is 4:9. What is the circle's diameter? - Calculate 48073
Calculate the area of the isosceles trapezoid ABCD if a = 14 cm, c = 8 cm, and the size of the angle DAB is 52 °. - Calculate 46541
Calculate the perimeter and the area of a right triangle if a = 6 cm, b = 8 cm, c = 10 cm. - Circular 36163
The circular park has an area of 31400 m². A trail runs across the center of the park. How long is it? - Magnification 21383
When we increased the circle's radius by 2 cm, its area increased by 40π cm². Determine the radius of the circle before magnification. - Cross five
The figure in the picture is composed of the same squares and has an area of 45cm². What is its perimeter? - Circumference 9541
What is the area of the round flowerbed, whose circumference is 62.8 m? How many edges does it have? - Rectangular 9401
Matrix E is a rectangular matrix that contains 48 elements and four rows. How many columns does this matrix have? - A trapezoid
A trapezoid is 75 ft wide on top, 85 ft on the bottom, and the height is 120 ft. What is its area in the square yds? - [square] 6565
How many tiles with a side length of 20 cm will cover a square with a capacity of 1 m² [square]? - Football 6056
The football field has an area of 75.75a. What is the width if its length is 101m? - One-third 2872
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? - 3x square
The side length of the square is 73 cm. How many times does a square's area increase if the side's length increases three times? - Rectangle
The area of a rectangle is 893. Its length is 28 larger than the width. What are the dimensions of the rectangle? - Trapezoid - hard example
Bases of the trapezoid are: 24, 16 cm. Diagonal 22, 26 cm. Calculate its area and perimeter. - Reduced - rectangles
The dimensions of the rectangle are a = 42 cm, and b = 91cm. Determine the perimeter and area of the rectangle, which is reduced in size compared to the original rectangle in the ratio 6:7. - Two conductors
Two conductors have resistance Rs=5 ohms when connected in series and Rp=1.2 ohms when connected in parallel. Calculate the value of the resistors.
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