Maths practice for 11-year-olds. - page 226 of 227
Number of problems found: 4525
- Isosceles trapezium
Isosceles trapezoid ADMR (AD ∥ MR) has an angle of 30° at vertex A. Calculate the size of the angle at vertex M. - Garden
A trapezoid-shaped garden has parallel sides of 19 m and 24 m. Its area is 193.5 square metres. What is the height of the trapezoid? - Area of trapezoid
The parallel sides of a trapezoid are 9 dm and 7 dm. Its height is 3 cm. Calculate the area of the trapezoid. - Rectangular trapezoid
How many interior right angles does a right-angled trapezoid have? - Present
A gift box has the shape of a cuboid with dimensions 8 × 8 × 3 cm. Miloslav wants to wrap it using square sheets of paper with sides of 18 cm. How much paper is left over? - Monkey
The monkey fell into 20 meters deep well. Every day it climbs 3 meters, at night it drops back by 2 m. On what day it gets out from the well? - 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. - Aquarium
An aquarium is a rectangular cuboid with a square base. It contains 62 litres of water and the base edge is 34 cm long. To what height does the water level rise? - Shape
A plane figure has a maximum area of 677 mm². Calculate its perimeter if the perimeter is to be as small as possible. - Maximum area of rhombus
At what interior angles does a rhombus have the maximum area? - Pension or fraud
Imagine working your entire career honestly, paying taxes and social insurance contributions (in Slovakia). You have a gross wage of 970 euros. You and your employer together pay 310 euros per month in social insurance contributions over 41 years, and you - Rhombus angles
If one angle of a rhombus is 137.6°, what is the size of the adjacent angle? - Rhombus HP
Calculate the area of a rhombus with height 48 cm and perimeter 64 cm. - Rhombus problem
The perimeter of a rhombus is 268 m and its area is 2278 m². Calculate the height of the rhombus. - Playground
A rectangular playground is enclosed with 38 m of netting. Its width is 7 m. Calculate its length. - Garden plot
Calculate how many metres of fencing are needed to enclose a square garden with sides of 12 metres. - Scientists from the Social Insurance
Pavol went on sick leave and the social insurance office granted a daily sick pay of 12.68358032 EUR. Calculate how many days it will take Pavol to save up to the price of 0.15 EUR, given that the last decimal place of the daily sick pay is discarded each - Triangles
An equilateral triangle with a side of 16 cm has the same perimeter as an isosceles triangle with a leg of 23 cm. Calculate the base of the isosceles triangle. - Ratio
5 numbers are in the ratio 1:2:4:5:5. Their sum is 29172. What are the numbers? - Salary raise
The monthly salary was 927 Eur. During the year, it was raised to 1075 Eur. Calculate the month from salary was increased that employee earned 12604 Eur during the whole year.
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