Garden

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1. The hall
   The hall had a rectangular ground plan one dimension 20 m longer than the other. After rebuilding the length of the hall declined by 5 m and the width has increased by 10 m. Floor area increased by 300 m^2. What were the original dimensions of the hall?
2. Rectangular field
   One dimension of the rectangular field is 56 m greater than second dimension. If each side of the rectangle increases by 10 m, increases the surface field is 1480 m² . Determine dimencions of the field.
3. Circle arc
   Circle segment has a circumference of 41.89 m and 251.33 m² area. Calculate the radius of the circle and size of central angle.
4. Rectangle vs square
   One side of the rectangle is 1 cm shorter than the side of the square, the second side is 3 cm longer than the side of the square. Square and rectangle have the same content. Calculate the length of the sides of a square and a rectangle.
5. Trapezoid
   trapezoid ABCD a = 35 m, b=28 m c = 11 m and d = 14 m. How to calculate its area?
6. Diamond diagonals
   Calculate the diamond's diagonal lengths if its content is 156 cm² and the side length is 13 cm.
7. Two squares
   Two squares whose sides are in the ratio 5:2 have sum of its perimeters 73 cm. Calculate the sum of area this two squares.
8. Triangle ABC
   Calculate the sides of triangle ABC with area 1404 cm² and if a: b: c = 12:7:18
9. Isosceles trapezoid
   Calculate the content of an isosceles trapezoid whose bases are at ratio 5:3, the arm is 6cm long and it is 4cm high.
10. Rectangle - sides ratio
    Calculate area of rectangle whose sides are in ratio 9:5 and perimeter is 801.
11. Rectangle - sides 3
    If in the rectangle ABCD we enlarge the side a by 5 cm and decrease the side b by 2 cm, the rectangle area will be reduced by 5 cm². When we decrease the length of the side a by 4 cm and and at the same time we increase the length of side b by 3 cm we incr
12. Rectangles - sides
    One side of the rectangle is 10 cm longer than second. Shortens longer side by 6 cm and extend shorter by 14 cm increases the area of the rectangle by 130 cm^2. What are the dimensions of the original rectangle?
13. Right triangle Alef
    The area of a right triangle is 294 cm^2, the hypotenuse is 35 cm long. Determine the lengths of the legs.
14. Property
    The length of the rectangle-shaped property is 8 meters less than three times of the width. If we increase the width 5% of a length and lendth reduce by 14% of the width it will increase the property perimeter by 13 meters. How much will the property cost
15. Isosceles triangle
    The perimeter of an isosceles triangle is 112 cm. The length of the arm to the length of the base is at ratio 5:6. Find the triangle area.
16. Three shapes
    1/5 of a circle is shaded. The ratio of area if square to the sum of area of rectangle and that of the circle is 1:2. 60% of the square is shaded and 1/3 of the rectangle is shaded. What is the ratio of the area of circle to that of the rectangle?
17. Trapezoid
    How long are the trapezoid bases with area 24 cm² and height 3 cm. One base is 3 times longer than the shorter.