Area and Surface Formulas Worksheets Grade 7

1. A cylinder has a radius of 15 cm and a height of 20 cm. Calculate its total surface area. (Use π = 3.14)
2. Aroha is building a decorative planter box for her garden. The box is shaped like a rectangular prism and is 15 meters long, 9 meters wide, and 7 meters high. She wants to cover the entire outside surface (including the top and bottom) with waterproof sealant. What is the total surface area Aroha needs to cover in square meters?
3. A rectangular prism has length 14 cm, width 9 cm, and height 11 cm. Calculate its surface area.

…and 2 more problems

1. Hana is designing a cylindrical water feature for a community park. The cylinder will have a radius of 1.5 meters and a height of 2.8 meters. She needs to paint the curved surface and the two circular ends (top and bottom) with a special waterproof sealant. What is the total surface area Hana needs to cover, in square meters? Use pi = 3.14 and round your answer to the nearest whole number.
2. A cylinder has a radius of 8 cm and a height of 14 cm. Calculate its total surface area. Use π = 3.14.
3. A rectangular prism has length 12 cm, width 8 cm, and height 6 cm. Calculate its surface area.

1. Liam is designing a cylindrical water tank for his school's science project. The tank needs to hold exactly 5000 liters of water and must have a height of 2.5 meters. What is the radius of the tank's base in meters? (Remember: 1 cubic meter = 1000 liters)
2. Aroha is painting a cylindrical storage tank. The tank has a radius of 7 cm and a height of 15 cm. What is the total surface area of the tank? (Use π = 22/7)
3. Mason is painting a cylindrical storage tank. The tank has a radius of 7 meters and a height of 12 meters. What is the total surface area of the tank in square meters? (Use π = 22/7)

…and 1 more problems