Area of shape - 6th grade (11y) - math problems
Number of problems found: 155
Plane shape has a maximum area 677 mm2. Calculate its perimeter if perimeter is the smallest possible.
- Circle area
Calculate the circle area with a radius of 1.2 m.
Land has a rectangular shape, its surface area is 1.45 hectares. Its width is 250 m. Determine the length of the land.
- Perimeter to area
Calculate the area of a circle with the perimeter 15 meters.
- Area of square
Calculate the content area of the square whose perimeter is 24 dm.
- Diameter to area
Find the area of a circle whose diameter is 26cm.
- The playground
The playground has the shape of a square with a side of 64 m. It is fenced on three sides. What is the area of the playground and how long is its fence?
Calculate the area of a circle whose radius is 5 dm.
- Concrete pedestal
The carpenters made wooden mold on a concrete pedestal in the shape of a cube with edge 2 meter long. What is the area in which the concrete touches wooden molds? (No lid or bottom)
- Area of rectangle
How many times will increase the area of the rectangle, if we increase twice the length and at the same time we decrease the width by the half?
- Octagon from rectangle
From tablecloth rectangular shape with dimensions of 4 dm and 8 dm we cuts down the corners in the shape of isosceles triangles. It thus formed an octagon with area 26 dm2. How many dm2 we cuts down?
- Maximum area of rhombus
Calculate the interior angles at which equilateral rhombus has a maximum area.
- Perimeter of square
The square has a circumference 17cm. What is its area?
The diameter of a circular plot is 14 dm. Find the circumference and area.
- Quadrant II
Calculate the radius of the quadrant, which area is equal to area of circle with radius r = 15 cm.
- Circle simple
Circumference of a circle is 6.28. What is the area of the circle?
The rectangular land is 350m long and 200m wide. Calculate the area in hectares.
- A rectangle
A rectangle has an area of 36 cm2. What could the length and width of rectangle be?
- Area of a triangle
What is the area of a triangle that has the base 4 1/4 and the height of 3 3/3?
Find the radius of the circle with area S = 200 cm².
Examples of area of plane shapes. Examples for 6th grade (the sixth graders).