Area - 7th grade (12y) - math problems
Number of problems found: 399
- Circle area
Calculate the circle area with a radius of 1.2 m.
- Perimeter to area
Calculate the area of a circle with the perimeter 15 meters.
- Diameter to area
Find the area of a circle whose diameter is 26cm.
- Area to perimeter
Calculate circle circumference if its area is 254.34cm2
- In the
In the national park, the ratio of the wooded area to grassland is 4: 1. The total area is 385km2. What area is wooded?
- Area of ditch
How great content area will have a section of trapezoidal ditch with a width of 1.6 meters above and below 0.57 meters? The depth of the ditch is 2.08 meters.
- 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?
- Maximum area of rhombus
Calculate the interior angles at which equilateral rhombus has a maximum area.
- Area to volume
If the surface area of a cube is 486, find its volume.
- Two walls
Calculate the surface area of a cube in m2 if you know that the area of its two walls is 72 dm2.
Forest has an area of 36 ha. How much area is occupied by forest on the map at scale 1:500?
- Cube walls
Find the volume and the surface area of the cube if the area of one of its walls is 40 cm2.
Area of circle inscribed in a square is 14. What is the area of a circle circumscribed around a square?
- Volume and area
What is the volume of a cube which has area of 361 cm2?
- Quadrant II
Calculate the radius of the quadrant, which area is equal to area of circle with radius r = 15 cm.
Calculate the area of a circle whose radius is 5 dm.
- Curved surface area CSA
A cylinder 5cm high has a base radius(7/2) cm. Calculate the curved surface area.
- Land area 2
A land area was divided among the three heirs in the ratio 5:2:4. If the largest share was 20 hectares of land, what is the total area of land? Please show your solution and what kind of proportion is this please
- Surface area
Calculate the surface area of a four-sides 2-m high prism which base is a rectangle with sides 17 cm and 1.3 dm
- Hexagon area
The center of the regular hexagon is 21 cm away from its side. Calculate the hexagon side and its area.
Area - math word problems. Examples for 7th grade (seventh).