Planimetrics - practice for 11 year olds - page 11 of 30
Number of problems found: 585
- Rectangle
The rectangle area is 182 dm², and its base is 14 dm. How long is the other side? Calculate its perimeter. - 6-gon
The perimeter of a regular hexagon is 113. Calculate its circumradius (radius of a circumscribed circle). - Well
A rope with a bucket is fixed on the shaft with the wheel. The shaft has a diameter of 50 cm. How many meters will drop bucket when the wheels turn 15 times? - Trapezium
Find the height of the trapezium ABCD, which has an area 77.5 cm² and base lengths 16 cm and 15 cm.
- Rectangle
Calculate the perimeter of the rectangle with sides a=2.4 m and b=1.9 m. - Strip
From 3 cm wide strip should be cut rhombus with area 16 cm². How long will it be on its side? - Area of RT 2
Calculate the area of a right triangle whose legs have a length of 6.2 cm and 9.8 cm. - Rhombus
Find the length of each rhombus side if the perimeter is 89 cm long. - Garden
The garden has two opposite parallel fences. Their distance is 33.1 m. Lengths in these two fences are 75.5 meters and 49.4 meters. Calculate the area of this garden.
- Area of trapezoid
The trapezoid bases are 7 cm and 9 dm. Its height is 6 cm. Calculate the area of the trapezoid. - Rectangular trapezoid
How many inner right angles have a rectangular trapezoid? - Circles
For the circle c1(S1; r1=109 cm) and c2(S2; r2 = 152 cm) is distance of centers |S1S2| = 261 cm. Determine the distance between the circles. - Rhombus angles
If one angle in the rhombus is 137.6°, what is its neighboring angle in the rhombus? - Rhombus HP
Calculate the area of the rhombus with height 75 cm and perimeter 16 cm.
- Garden plot
Calculate how many meters of the fence need to fence the square garden with a length and width of 12 meters. - Determine 36601
The plumbers have to cut sheet metal measuring 220 cm and 308 cm into squares of equal size so that the squares are as large as possible and the sheet metal is used without residue. How many such squares will they cut? Determine the side of this square. - Pexeso
Drawing paper has dimensions of 60cm and 840mm. Pupils have to divide it into squares to make a pexeso. What dimension must squares have if their side is larger than 3cm and less than 10cm? - Around the flowerbed
Around a rectangular flowerbed with dimensions 5.25 m and 3.5 m are to be planted roses equally spaced so that the roses are found in every corner of the flowerbed and consumed as little as possible. a) At what distance are planted roses? b) How many rose - Tractor wheels
The tractor's front wheel has a circumference of 18 dm and the rear 60 dm. We will make a red mark on the lowest point of both wheels. The tractor then starts. At what distance from the start will both marks appear identically at the bottom again?
Do you have homework that you need help solving? Ask a question, and we will try to solve it.