Power - practice for 12 year olds - last page
Number of problems found: 130
- Garden
The square garden area is 2/9 of triangle garden with sides 160 m, 100 m, and 100 m. How many meters of fencing need to fence a square garden? - Cylinders
The area of the side of two cylinders is the same rectangle of 33 mm × 18 mm. Which cylinder has a larger volume, and by how much? - Rectangular cuboid
The rectangular cuboid has a surface area 5447 cm², and its dimensions are in the ratio 2:4:1. Find the volume of this rectangular cuboid. - Right isosceles
Calculate the area of the isosceles right triangle whose perimeter is 26 cm.
- Cube
The cube weighs 11 kg. How weight is a cube of the same material if its dimensions are 3-times smaller? - Is right?
Is a triangle with sides 51, 56, and 77 right triangle? - Bulbs
In the box are 6 bulbs with power 75 W, 14 bulbs with power 40 W, and 15 with 60 W. Calculate the probability that a randomly selected bulb is: - Circle
How big is an area of a circle if its circumference is 51.2 cm? - Trapezium zoom
How many times increase the area of the trapezoid if all sides and altitude increase 5 times?
We apologize, but in this category are not a lot of examples.
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