Examples of area of plane shapes - page 25 of 135
Number of problems found: 2697
- Football Field Width
The football field has an area of 75.75a. What is the width if its length is 101 m? - Right-angled triangle
Determine the area of a right triangle whose side lengths form successive members of an arithmetic progression, and the radius of the circle described by the triangle is 5 cm. - Rhombus sides
Find the sides of a rhombus; its area is 550 cm², and its altitude is 20 cm. - Trapezoid MO-5-Z8
Trapezoid KLMN has bases 12 and 4 cm long. The area of triangle KMN is 9 cm². What is the area of the trapezoid KLMN? - Isosceles right triangle
The area of an isosceles right triangle is 18 dm². Calculate the length of its base. - Trapezoid - central median The central median divides the trapezoid into two smaller trapezoids. Find the ratio of its areas.
- Square diagonal
Calculate the diagonal of a square if its area is equal to 169 square centimeters. - Rhombus perimeter
Calculate the perimeter of a rhombus, one side of which is 6 cm long, and the height of this side is 2 cm long. The height on the other side is 4 cm long. - Argicultural field
The field has a rectangular shape with a width of 180 m and a circumference of 940 m. How many hectares of the acreage has a field? - Rectangle area
The circumference of the rectangle is 22 cm, and one side is 3 cm shorter than the other. What is the area of this rectangle? - 3x square
The side length of the square is 73 cm. How many times does a square's area increase if the side's length increases three times? - Sidewalk
The city park is a circular bed of flowers with a diameter of 8 meters. Around it, the whole length is 1-meter wide sidewalk. What is the sidewalk area? - Annulus
Two concentric circles form an annulus with a width of 10 cm. The radius of the smaller circle is 20 cm. Calculate the area of the annulus. - Rape
The agricultural cooperative harvested 525 ares of rape, of which received 5.6 tons of rape seeds. Calculate the yield per hectare of rape. - Grandmother and grandfather
Grandmother baked cakes. Grandfather ate half, then a quarter of the rest ate Peter, and Paul ate half of the rest. There were six cakes left for parents. How many cakes were made by the grandmother? - Trapezoid - legs
Determine the trapezoid area with bases 84 and 47; the height is 4 shorter than its leg. - Inscribed rectangle
The circle area is 231. Determine the area of the inscribed rectangle with one side 13 long. - Euklid4
The legs of a right triangle have dimensions 241 m and 34 m. Calculate the length of the hypotenuse and the height of this right triangle. - Sequence
The arithmetic sequence is given: Sn=1656, d=6, an=138 Calculate a1 and n. - Rhomboid
Calculate the perimeter and area of a parallelogram with sides 19 and 20 and an included angle of 40°.
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