Surface Area of Pyramids (Lateral Area)

What is a key characteristic of a pyramid?

• It has a circular base.

• It has at least three triangular sides.

• It is a 2D shape.

• It has no vertices.

How does a square pyramid differ from a triangular pyramid?

• A square pyramid has four triangular faces.

• A square pyramid has a triangular base.

• A triangular pyramid has four triangular faces.

• A triangular pyramid has a square base.

What formula is used to calculate the lateral area of a pyramid?

• Lateral area = base area + slant height

• Lateral area = 0.5 x base area x height

• Lateral area = perimeter of base x slant height

• Lateral area = 0.5 x perimeter of base x slant height

How do you find the surface area of a pyramid using the lateral area?

• Add the lateral area to the perimeter of the base.

• Subtract the base area from the lateral area.

• Multiply the lateral area by the base area.

• Add the lateral area to the area of the base.

Find the surface area of the pyramid.

(Use Lateral Area)

• 250 cm²
• 150 cm²
• 383.25 cm²
• 400 cm²

A paper model of the Khafre pyramid in Egypt has a square base of 7.2 centimeter. The slant height is 6 centimeters. How much paper was used to make the model? (Use Lateral Area)

• 138.24 cm²
• 150.00 cm²
• 100.75 cm²
• 120.50 cm²

Find the surface area of the prisms.

• 50.4 mm²
• 36.8 mm²
• 95.7 mm²

• 72.6 mm²

What is the surface area of a square pyramid with a base perimeter of 28 and a slant height of 11.5?

• 28 yards squared

• 210 yards squared

• 161 yards squared

• 49 yards squared