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

#### Number of problems found: 127

• Curved surface area CSA A cylinder 5cm high has a base radius(7/2) cm. Calculate the curved surface area.
• 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
• Surface area 6 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 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 If the surface area of a cube is 486, find its volume.
• Surface area of cylinder Determine the lateral surface of the rotary cylinder which is circumscribed cube with edge length 5 cm.
• Two walls 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 Find the volume and surface of a wooden block with dimensions: a = 8 cm, b = 10 cm, c = 16 cm.
• Cube walls Find the volume and the surface area of the cube if the area of one of its walls is 40 cm2.
• Cube 2 How many times will increase if the surface area of the cube if we triple length of its edge?
• Area of the cone Calculate the surface area of the cone, you know the base diameter 25 cm and a height 40 cm.
• Cube wall Surface of first cube wall his 225 mm2. Second cube area is 60% of the surface of the first cube. Determine the length of the edge of the second cube (x).
• Cube How many times increases the surface area of a cube with edge 23.4 cm if the length of the edge doubled?
• Tereza The cube has an area of base 256 mm2. Calculate the edge length, volume, and area of its surface.
• Observatory Observatory dome has the shape of a hemisphere with a diameter d = 16 m. Calculate the surface.
• Cube 5 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 Surface area of one wall cube is 1600 cm square. How many liters of water can fit into the cube?
• Reservoir 6 m long reservoir has a diameter of 2.2 m. What is its surface area in square meters?
• Cuboid surface Determine surface area of cuboid if its volume is 52.8 cm cubic and length of the two edges are 2 cm and 6 cm.
• Edge c Find the edge c of cuboid if an edge a = 20 mm, b = 30 mm and surface area S = 8000 mm2.

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