Length - practice for 13 year olds - page 4 of 62
Number of problems found: 1230
- The road
3/5 of a road is to be resurfaced. If the road is 2 3/5km long, what length in kilometers is to be resurfaced? - The castle
The map shows the castle moat by a line 2 cm long. The moat is 500 meters long. Find the scale of the map. - Dimensions 3
A perimeter of a rectangular field is 96 meters. The length is four meters less than three times the width. Find the length and width (its dimensions). - The length 4
The length of a rectangular room measures twice a number x increased by 5. The width measures a number x increased by 3. What is the perimeter of the room? - Body diagonal
Calculate the length of the body diagonal of a block with dimensions: a = 20 cm, b = 30 cm, c = 15 cm. - Wave parameters
Calculate the speed of a wave if the frequency is 336 Hz and the wavelength is 10 m. - Square sides
If the square side increases by 28%, the square circumference increases by 11.2 meters. Find the length of the original square side. - Diagonal to area
Calculate the area of a rectangle in which the diagonal length is 10 cm. - Perimeter of a rectangle
If the perimeter of a rectangle is 114 meters and the length is twice the width plus 6 meters, what are the length and width? - Clocks
The length of the minute hand is 12 cm. What track in meters will its endpoint describe in a week? - Chord 5
It is given a circle k / S; 5 cm /. Its chord MN is 3 cm away from the center of the circle. Calculate its length. - Cube 8
The surface of the cube is 0.54 m². Calculate the length of the cube edge. - Rhombus
Calculate the length of the diagonal AC of the rhombus ABCD if its perimeter is 84 dm and the other diagonal BD has length 20 dm. - Square diagonal
Calculate the length of the square diagonal if the perimeter is 172 cm. - Garden 81614
The garden is drawn on a scale of 1:200. In what ratio are the real area of the garden and the area of its image? - Decrease 80441
By what percent does a cube's volume decrease if its edge length is reduced by a quarter? - Perimeter 67934
The length of the rectangle is (x + 5y - 2), and its width is (x + 2) smaller than the length. Express the perimeter of the rectangle by variables. - Coordinates 36751
Calculate the circle's length and determine the coordinates of the center of the circle when given its diameter XY, X / -3.2 / and Y / -3, -4 /. - Together 18563
The length of the Rhine is 3/7 the length of the Danube. Both together are 4000 km long. How long is each river? - Calculation 18413
What is the length of the cathetus of an isosceles right triangle with an 8 cm long hypotenuse? Make calculations and procedures.
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