Surface Area

Front

What is the surface area of a cube with a side length of 4 cm?

Back

The surface area of a cube is calculated using the formula: 6 * (side length)^2. For a side length of 4 cm, the surface area is 6 * (4 cm)^2 = 96 cm².

Front

Define surface area.

Back

Surface area is the total area that the surface of a three-dimensional object occupies.

Front

What is the formula for the surface area of a rectangular prism?

Back

The surface area of a rectangular prism is calculated using the formula: 2(lw + lh + wh), where l is length, w is width, and h is height.

Front

What 3D shape has a square base and four triangular faces?

Back

A square pyramid.

Front

How do you find the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width (Area = length × width).

Front

What is the surface area of a triangular prism with a base area of 20 cm² and a height of 10 cm?

Back

The surface area of a triangular prism is calculated as: (Base Area × 2) + (Perimeter of Base × Height). Assuming the perimeter is 30 cm, the surface area = (20 cm² × 2) + (30 cm × 10 cm) = 40 cm² + 300 cm² = 340 cm².

Front

What is the area of a circle with a radius of 3 cm?

Back

The area of a circle is calculated using the formula: πr². For a radius of 3 cm, the area is π(3 cm)² ≈ 28.27 cm².

Front

What is a net in geometry?

Back

A net is a two-dimensional pattern that can be folded to form a three-dimensional shape.

Front

What is the surface area of a cylinder with a radius of 3 cm and a height of 5 cm?

Back

The surface area of a cylinder is calculated using the formula: 2πr(h + r). For a radius of 3 cm and height of 5 cm, the surface area is 2π(3 cm)(5 cm + 3 cm) = 2π(3 cm)(8 cm) ≈ 150.8 cm².

Front

What is the area of a triangle with a base of 6 cm and a height of 4 cm?

Back

The area of a triangle is calculated using the formula: (base × height) / 2. For a base of 6 cm and height of 4 cm, the area is (6 cm × 4 cm) / 2 = 12 cm².