Examples of area of plane shapes - page 28 of 135
Number of problems found: 2697
- Diagonals of the rhombus
Calculate the height of a rhombus whose diagonals are 18 cm and 6 cm. - Trapezium zoom
By how many times does the area of a trapezoid increase if all its sides and height are multiplied by 5? - Parallelogram height side
The area of the parallelogram is 10.24 m2, and its side is 25.6 m. Find the height to this side. - Trapezoid perimeter area
In the trapezoid, it is given: all four sides a = 51 cm; b = 30 cm; c = 18 cm; d = 27 cm; and height v = 24 cm; Calculate: perimeter o=? and area S=? - Land areas
Two land areas are 244 m². The first parcel is 40 m² less than twice the second one. What is the acreage of each parcel? - Parallelogram - side
Calculate the length of the side of a parallelogram whose area is 128 dm² and height to that side is 27.7 dm long. - Determine the area
Determine the area of trapezoid ABCD, given that AB = 6 cm, the area of triangle ABC = 15 cm², the area of triangle BCD = 20 cm², and AB ∥ CD. - Square colored percentage
The square in the picture has a side length of 6 cm. What percentage of the area is the colored part? - Carpet floor uncovered
In a rectangular room with dimensions of 3.5 m and 4 m, a square carpet with a side of 3 m is laid on the floor. How many m² of the floor is not covered by carpet? - Geometric sequence sum
Determine s5 of the geometric sequence if: a1 + a2 = 10 and a4 - a2 = 120 - Square ratio comparison
Two squares are given. The first has a side length of 5 cm, the second 10 cm. Write the ratio of: for a- of their sides for b- their perimeters for c- their areas - Triangle field area
The field has the shape of an equilateral triangle. Calculate its area if you know that the side is 280 meters long. - Triangle area proof
Squares are constructed above the overhangs and the transom. Connecting the outer vertices of adjacent squares creates three triangles. Prove that their areas are the same. - The length 11
The length of a rectangle is four times its width. If the area is 100 m², what is the length of the rectangle? - Circle waste percentage
A full circle is cut from a square plate with a side of 200 mm. What percentage of the plate is waste? - Trapezoid
Right-angled trapezoid ABCD has a right angle at vertex A and sides a, b, c, and d. Calculate its perimeter and area, given a = 25 cm, c = 10 cm, d = 8 cm. - The dough 2
A baker made 8 pounds of dough. He used 5/9 of the dough to make sandwich rolls. How much of the dough is left over? - Area and perimeter 2
Find the area and the perimeter of a rectangle of length 45 1/2 cm and breadth 16 2/3 cm. - Trapezoid area angle
Calculate the area of the isosceles trapezoid ABCD if a = 14 cm, c = 8 cm, and the size of the angle DAB is 52 °. - The ABCD
The ABCD trapezoid has a base length of a = 120 mm, c = 86 mm, and an area of S = 2575 mm². Calculate the height of the trapezoid.
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