# Units - math word problems

1. Sphere
The surface of the sphere is 12100 cm2, and the weight is 136 kg. What is its density?
2. Arc and segment
Calculate the length of circular arc l, area of the circular arc S1 and area of circular segment S2. Radius of the circle is 11 and corresponding angle is ?.
3. Octagon
We have a square with side 84 cm. We cut the corners to make his octagon. What will be the side of the octagon?
4. Meridian
What is the distance (length) the Earth's meridian 23° when the radius of the Earth is 6370 km?
5. Money
Everyone complains about the lack of money. In fact, there is no shortage of money, but the relative scarcity of goods and things that people buy for money. Calculate what percentage of the price of all goods and services rose immediately, if everyone ha
6. 3-bracket 2
May be the smallest angle in the triangle greater than 40°?
7. Angles 1
It is true neighboring angles have not common arm?
8. 3-bracket
May be the largest angle in the triangle less than 20°?
9. Diagonal
Can a rhombus have the same length diagonal and side?
10. 3-bracket 3
Two angles in a triangle are 90° and 60°. Has triangle at least two equal sides?
11. Diagonals of the rhombus
Calculate height of rhombus whose diagonals are 12 cm and 19 cm.
12. Chord
Point on the circle is the end point of diameter and end point of chord length of radius. What angle between chord and diameter?
13. Trigonometric functions
In right triangle is: ? Determine the value of s and c: ? ?
14. Euler problem
Someone buys a 180 tolars towels. If it was for the same money of 3 more towels, it would be 3 tolars cheaper each. How many were towels?
15. Garden
How many steps of 76 cm circumvent square garden with area 1.8 ha?
16. Cube
The sum of lengths of cube edges is 57 cm. What is its surface and volume?
17. Bricks
Brick has volume 2.2 dm3. How many bricks can drive truck with capacity 23 ton? The density of brick is 1.6 g/cm3.
18. Rates
When gas consumption, the consumer may choose one of two rates: rate A - which pays 0.4 € per 1 m3 of gas a flat monthly fee of 3.9 € (regardless of consumption) rate B - which pays 0.359 € per 1 m3 of gas a flat monthly fee of 12.5 € From what month
19. Observatory
Observatory dome has the shape of a hemisphere with a diameter d = 16 m. Calculate the surface.
20. Rainfall
Annual rainfall in our country are an average of 797 mm. How many m3 of water rains on average per hectare?

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