Examples of area of plane shapes - page 22 of 131

Number of problems found: 2604

Mr. Happy
Mr. Happy planted 36.6 meters of square garden grass; It's a third of the garden, more than half of the garden. What is the square area of this garden?
Grandmother and grandfather
Grandmother baked cakes. Grandfather ate half, then a quarter of the rest ate Peter, and Paul ate half of the rest. There were six cakes left for parents. How many cakes were made by the grandmother?
Circular flowerbed
We split the circular flowerbed with a diameter 8 m by concentric circles to circles and annulus with the same area. Find the radius of the circle.
Isosceles III
The base of the isosceles triangle is 18 cm area 250 cm². Calculate the perimeter of this triangle.
Windows
Calculate the masonry area to build a wall with dimensions of 18 m × 5 m with 3 windows of size 51 cm × 51 cm.
Carpet
The room has a rectangular shape with dimensions 5 m × 2.1 m. How many meters of carpet does a width of 2 need to buy to cover the entire room?
Trapezium zoom
How many times should the area of the trapezoid be increased if all sides and altitudes increase 5 times?
Rectangle A2dim
Calculate the side of the rectangle if you know that its area is 950 m² and one side is 38 m.
Garden 83367
How many meters of mesh is needed to fence a square garden with an area of 5,402.25 square meters?
Calculate 83366
Calculate the side a of triangle ABC if we know va=8cm, b=16cm, vb=10cm.
Determine 81988
Determine s5 of the geometric sequence if: a1 + a2 = 10 and a4 - a2 = 120
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?
Fenced 78064
I bought 51m of wire, fenced off a square garden, and had 3m of wire left. What is the size of the garden?
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?
Calculate 55233
Calculate the pressure in the fluid: force F = 2,400 N The area on which the force S = 8 m² acts p =?
Smallest 32811
Which diamond with a side length of 7.5 cm has: a / largest area, b / smallest area
Perpendicular 24671
The right triangle has an area of 2304 cm², and one perpendicular is 8 cm long. Express and calculate the second perpendicular.
Measuring 14343
The town square has the shape of a square measuring 510 meters. What is the size of this square?
Measuring 10831
How many euros will we pay for paving a yard measuring 200 meters and 50 meters if 10 square meters of tiles cost 9.50?
Measures 7543
The garden has an area of 1378 m², and a side measures 53m. How much does side b measure?

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