Area of a shape + rounding - practice problems
Number of problems found: 81
- Jodi is
Jodi is cutting out pieces of paper that measure 8 1/2 inches by 11 inches from a larger sheet of paper that has an area of 1,000 square inches. What is the area of each piece of paper that Jodi is cutting out? - Area of a circle
The circumference of the circle is 150.72 centimeters. Calculate the area of the circle. - Circumference 48533
The diameter of the circle is 6.8 cm. Calculate the area of the circle to 1 decimal place. Calculate the circumference of the circle to 1 decimal place. - Calculate 6930
Calculate the diameter of a circle whose area S = 78.5 cm². - Father and son
Father and son are 74 years old together. Son is 30 years younger than father. How old is the son? - Calculate 45931
Calculate the area of a circle with a radius of 72.9 cm. Specify it in cm2, and enter only a numeric value in response. - Circular 36163
The circular park has an area of 31400 m². A trail runs across the center of the park. How long is it? - The crane
The construction crane has a 20m long arm. What construction area in ares can it handle from this crane if it rotates around its axis? - Ray
Light ray loses 1/14 of brightness passing through a glass plate. What is the brightness of the ray after passing through 10 identical plates? - Everyone 13843
The orchard measures 24.6 meters x 70 meters. How many trees can we plant in it if everyone needs at least 12 square meters? - Trapezoid
Calculate the area of trapezoid ABCD with sides |AB|= 82 cm, |BC|=60 cm, |CD|=19 cm, |AD|=39 cm.. - Rhombus 2
Calculate the rhombus area with a height v=48 mm and shorter diagonal u = 60 mm long. - Rectangular 20023
The land has a rectangular shape with 75 m and 450 dm dimensions. Calculate the acreage of the land and convert the result, and round to whole ares. - Paint cans
How many paint cans do we need to paint the floor in two rooms with dimensions of 6.8m x 4.5m and 6m x3.8m? One can is for 6 m². - Calculate 65154
Each square of the net has an area of 25 mm². Calculate the area of the DEF triangle in cm². Express the result as a decimal number to three decimal places. - Dimensions 4142
The area is 5m x 59dm. How many boards will it need if one board has 30cm x 37 cm dimensions? - Semicircle
The ornament consists of one square and four dark semicircles. The area of the square is 4 cm². Find the area of one dark semicircle and round the result to hundreds. - Dimensions 14883
Žofka decided to wallpaper one side of her room. How long does he have to go to school if the dimensions are 3 m and 2.4 m? - Rectangular 67244
The department store has a rectangular car park with a length of 48 m and a width of 65 dm. How many cars can there fit when each car needs 2.5 m²? - Calculate 47763
Calculate the area of an isosceles trapezoid ABCD, whose longer base measures 48 cm, the shorter base measures 3/4 of the longest base, and the leg of the trapezoid measures 2/3 of the longer base. The result is rounded to the nearest hundredth.
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