Examples of area of plane shapes - page 16 of 129
Number of problems found: 2563
- Trapezoid - central median
The central median divides the trapezoid into two smaller trapezoids. Find the ratio of its areas. - Triangle
The triangle has known all three sides: a=4.6 m, b=7.4 m, c= 3.8 m. Calculate the area of this triangle. - Trapezium
Find the height of the trapezium ABCD, which has an area 87.5 cm² and base lengths 15 cm and 10 cm. - Silo
The outer perimeter of the silo is 10 m. The concrete wall is 13 cm thick. What is the diameter and area of the inside floor of the silo? - Sequence
The arithmetic sequence is given: Sn=1656, d=6, an=138 Calculate a1 and n. - Triangle
Calculate the area of the right triangle ΔABC if one leg is long 12 and its opposite angle is 47°. - Circle
How big is the area of a circle if its circumference is 51.2 cm? - Rhombus
Calculate the perimeter and area of a rhombus whose diagonals are 21 cm and 44 cm long. - Circumference 72414
Calculate the diagonal and the area of a square if its circumference is 10 centimeters. - The kitchen 2
The kitchen, 5m by 3.5m, has a cupboard covering 2m by 0.75m of the floor. What area of the floor remains uncovered? - Circumference 47893
The rectangle has an area of 19.84 cm2, and the longer side of the rectangle measures 62 mm. What is the circumference of a rectangle? - Rectangles 22781
A bricklayer has 48 tiles. How many different rectangles will he assemble? - Centimeters 10881
Calculate the perimeter of a square if its area is 6.25 square centimeters. - Containing 8340
Calculate the perimeter of a square containing 9 acres. - Inscribed 7018
The dragon has the shape of a regular hexagon inscribed in a circle with a radius of 20 cm. What is the area of the dragon? - Circumference 3589
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Diameter 2949
What is the diameter of a circle with an area of 35 cm square? - Triangle SSS
Calculate the perimeter and area of a triangle ABC if a=40, b=35, and c=55. - One side 2
One side of the rectangle is three times larger, and the other is 4 cm smaller than the side of the square. Find the area of the square if more than the area of the rectangle by 10 cm². - Percentage - rhombus
If the rhombus side in the image increases by half, by what percentage will the area of the rhombus increase?
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