Area of a shape - practice for 12 year olds - page 8 of 37
Number of problems found: 726
- 3x square
The side length of the square is 54 cm. How many times increases a square's area if the side's length increases three times? - Masons
One mason casts 30.8 meters square in 8 hours. How long casts four masons 178 meters square? - RT 10
The area of the right triangle is 84 cm², and one of its catheti is a=10 cm. Calculate the perimeter of the triangle ABC. - Circle
How big is an area of a circle if its circumference is 51.2 cm? - Circumference 72414
Calculate the diagonal and the area of a square if its circumference is 10 centimeters. - Smallest 32811
Which diamond with a side length of 7.5 cm has: a / largest area, b / smallest area - Calculate 7327
Calculate the area of a rectangle measuring 4m and 120dm in cm square. - Calculate 6951
Calculate the missing dimension in the rectangle if you know: S = 51.66 square meters, and = 8.2 square meters - Circumference 3589
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Parallelogram
Calculate the area and perimeter of a parallelogram whose two sides are long a=24 cm b=22 cm and height ha = 6 cm long. - Juila
Julia has a rectangular table 3 1/2 feet long and 1 3/4 feet wide. What is the area of Juila's table? - 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. - Area of rectangle
How many times will we increase the area of the rectangle if we increase twice the length and at the same time we decrease the width by half? - A trapezoid
A trapezoid is 75 ft wide on top, 85 ft on the bottom, and the height is 120 ft. What is its area in the square yds? - Square
Square JKLM has sides of a length of 24 cm. Point S is the center of LM. Calculate the area of the quadrant JKSM in cm². - 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? - Triangle eq
Calculate accurate to hundredths cm height of an equilateral triangle with a side length 12 cm. Calculate also its perimeter and area. - Percentage of waste
In a square plate with a side 75 cm, we cut four same circles. Calculate the percentage of waste. - Parallelogram - side
Calculate the length of the side of a parallelogram whose area is 161 dm² and height to that side is 23.6 dm long. - Quadrant II
Calculate the radius of the quadrant, which area is equal to the area of the circle with radius r = 15 cm.
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