Surface area - 7th grade (12y) - math problems

Number of problems found: 134

  • The surface
    kvader11_7 The surface area of the cuboid is 1714 cm2, the edges of the base are 25 cm and 14 cm long. Find the area of the surface.
  • Curved surface area CSA
    cylinder_8 A cylinder 5cm high has a base radius(7/2) cm. Calculate the curved surface area.
  • Surface area
    kvader11_6 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
  • Surface area 6
    prism3s Find the surface area of a prism whose bases are right triangles with sides of length 3, 4, and 5 inches and a height of 8 inches. Include a sketch
  • Surface and volume od cuboid
    kvader Content area of the square base of cuboid is Sp = 36 cm2 and its height 80 mm. Determine its surface area and volume.
  • Area to volume
    two_cubes_2 If the surface area of a cube is 486, find its volume.
  • Surface area of cylinder
    cylinder_cube Determine the lateral surface of the rotary cylinder which is circumscribed cube with edge length 5 cm.
  • Two walls
    cubes_1 Calculate the surface area of a cube in m2 if you know that the area of its two walls is 72 dm2.
  • Volume and surface area
    cuboid_2 Find the volume and surface of a wooden block with dimensions: a = 8 cm, b = 10 cm, c = 16 cm.
  • Cube walls
    cubes2_9 Find the volume and the surface area of the cube if the area of one of its walls is 40 cm2.
  • Cube 2
    krychle_1 How many times will increase if the surface area of the cube if we triple length of its edge?
  • Area of the cone
    cone2_1 Calculate the surface area of the cone, you know the base diameter 25 cm and a height 40 cm.
  • Tereza
    cube The cube has an area of base 256 mm2. Calculate the edge length, volume, and area of its surface.
  • Cube
    krychle How many times increases the surface area of a cube with edge 23.4 cm if the length of the edge doubled?
  • Cube wall
    kocka The surface of the first cube wall is 64 m2. The second cube area is 40% of the surface of the first cube. Determine the length of the edge of the second cube (x).
  • Observatory
    kopula Observatory dome has the shape of a hemisphere with a diameter d = 20 m. Calculate the surface.
  • Cube 5
    cube_4 The surface of the cube is 15.36 dm2. How will change the surface area of this cube if the length of the edges is reduced by 2 cm?
  • Cube 6
    water_cube Surface area of one wall cube is 1600 cm square. How many liters of water can fit into the cube?
  • The cube
    cubes_3 The cube has a surface area of 486 m ^ 2. Calculate its volume.
  • Reservoir
    cylinder_Au 6 m long reservoir has a diameter of 2.2 m. What is its surface area in square meters?

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Examples for the calculation of the surface area of ​​the solid object . Examples for 7th grade (seventh).