3.26 7th Math

Abigail is wrapping a gift box that is in the shape of a cube. If each side of the box is 5 cm long, calculate the total surface area of the wrapping paper needed to cover the box.

• 100 cm²

• 125 cm²

• 150 cm²

• 200 cm²

What is the surface area of a cylinder with a radius of 3 cm and a height of 7 cm? Use π ≈ 3.14.

• 188.4 cm²

• 197.8 cm²

• 201.6 cm²

• 210.2 cm²

Benjamin is designing a spherical water tank for his garden. He wants to find the surface area of the tank, which has a radius of 4 cm. Use π ≈ 3.14.

• 150.72 cm²

• 200.96 cm²

• 201.06 cm²

• 201.12 cm²

Henry is wrapping a gift box that is shaped like a rectangular prism with dimensions 4 cm by 3 cm by 2 cm. What is the surface area of the gift box?

• 52 cm²

• 48 cm²

• 54 cm²

• 60 cm²

Oliver is painting a rectangular wall. Which of the following units is appropriate for measuring the surface area of the wall?

• cm

• cm²

• cm³

• m

Benjamin is wrapping a gift box that is shaped like a cube. The side length of the box is 8 m. Calculate the surface area of the box to determine how much wrapping paper Benjamin will need.

• 384 m²

• 256 m²

• 512 m²

• 128 m²

Michael is wrapping a cylindrical gift with a diameter of 10 cm and a height of 15 cm. What is the surface area of the wrapping paper needed? Use π ≈ 3.14.

• 785 cm²

• 942 cm²

• 471 cm²

• 628 cm²

Nora is wrapping a perfectly spherical gift with a diameter of 10 cm. She wants to know how much wrapping paper she will need to cover the entire surface. Use π ≈ 3.14.

• 314 cm²

• 157 cm²

• 628 cm²

• 471 cm²

Priya is designing a tent in the shape of a triangular prism. The base of the tent has an area of 12 cm² and a height of 10 cm. If the perimeter of the base is 14 cm, what is the surface area of the tent?

• 280 cm²

• 168 cm²

• 140 cm²

• 154 cm²

Which formula is used to calculate the surface area of a cube?

• 6s²

• 2πr² + 2πrh

• 4πr²

• 2lw + 2lh + 2wh