Area of a shape + reason - practice problems
Number of problems found: 76
- Calculate 14733
Square has the side a = 12 cm. Calculate the area of a triangle in the square. - Triangle 8320
Is there a triangle with heights of 4, 7, and 10 meters? - Squares 5479
Draw two stone squares. They have a total of 34 stones. What edges do the squares have? - Mysterious area
The trapezoid ABCD is given. Calculate its area if the area of the DBC triangle is 27 cm².
- Triangle 3187
In a general triangle, the aspect ratio a: b = 2:3. What is the ratio of heights va: vb? - Trapezium zoom
How many times increase the area of the trapezoid if all sides and altitude increase 5 times? - Diameter 4111
How many balls with a diameter of 3.25 cm with a mixture in a circle with a diameter of 27 cm? - Playground 2908
The fencing of the square playground cost € 462, while the 1m fencing cost € 11. What is its playground area? - Squares
From the square with the integer side, cut out the square with the integer side so that the residual area is 100. What is the longest possible side of the larger square?
- Father and son
Father and son are 74 years old together. Son is 30 years younger than father. How old is the son? - Inscribed 44101
A circle is inscribed in the triangle with sides of 13 cm, 14 cm, and 15 cm. What is its radius? - Rectangles
How many different rectangles can be made from 60 square tiles of 1 m square? Find the dimensions of these rectangles. - Two rectangles 2
A square area of 36 cm² is cut out to make two rectangles - A and B. The area's ratio A to B is 2:1. Find the dimensions of rectangles A and B. - Circumference 2907
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?
- Unknown number 24
I think the number: a - is the same as the square area with the 12th circumference. What is this number? b - its half is seven times bigger than its quarter. Is this the number? - Do you solve this?
Determine area S of a rectangle and the length of its sides if its perimeter is 102 cm. - Rectangles 70304
How many rectangles with side lengths expressed in natural numbers have an area of 96 cm²? - Calculate 83302
Calculate the height of the rhombus ABCD on side BC if AB=7cm, BC=5.5cm, and the height of the first side on AB=4.4cm. - Occupies 5461
What is the land area in reality if 1 cm² occupies on a 1:20000 scale map?
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