Lateral and Total Surface Area

Front

What is the formula for the lateral surface area of a triangular pyramid?

Back

Lateral Surface Area = (1/2) * Perimeter of the base * Slant height.

Front

What is the formula for the total surface area of a triangular pyramid?

Back

Total Surface Area = Base Area + Lateral Surface Area.

Front

How do you calculate the area of a triangle?

Back

Area = (1/2) * base * height.

Front

What is a triangular pyramid?

Back

A three-dimensional shape with a triangular base and three triangular faces that meet at a point.

Front

What is a net in geometry?

Back

A two-dimensional representation of a three-dimensional shape that can be folded to form the shape.

Front

What is the base of a triangular pyramid?

Back

The base is the triangular face on which the pyramid stands.

Front

What is the difference between lateral surface area and total surface area?

Back

Lateral surface area includes only the sides, while total surface area includes the base and the sides.

Front

What shape is the base of a triangular prism?

Back

The base of a triangular prism is a triangle.

Front

If the base of a triangle is 7 ft and the height is 6 ft, what is the area?

Back

Area = (1/2) * 7 ft * 6 ft = 21 ft².

Front

What is the perimeter of a triangle with sides 3 ft, 4 ft, and 5 ft?

Back

Perimeter = 3 ft + 4 ft + 5 ft = 12 ft.