Surface Area of Rectangular and Triangular prisms

Front

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

Back

Lateral Surface Area = 2h(l + w), where h is height, l is length, and w is width.

Front

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

Back

Total Surface Area = 2lw + 2lh + 2wh, where l is length, w is width, and h is height.

Front

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

Back

Lateral Surface Area = perimeter of base × height.

Front

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

Back

Total Surface Area = Lateral Surface Area + 2 × Area of the base.

Front

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

Back

Lateral surface area does not include the area of the bases, while total surface area includes the area of the bases.

Front

Calculate the surface area of a rectangular prism with length 5 cm, width 9 cm, and height 20 cm.

Back

Surface Area = 2(5*9 + 5*20 + 9*20) = 650 cm².

Front

Calculate the lateral surface area of a triangular prism with a base perimeter of 30 cm and height of 10 cm.

Back

Lateral Surface Area = 30 cm × 10 cm = 300 cm².

Front

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

Back

Area = 1/2 × base × height = 1/2 × 6 cm × 4 cm = 12 cm².

Front

If a rectangular prism has a length of 7 inches, width of 3 inches, and height of 5 inches, what is its total surface area?

Back

Total Surface Area = 2(7*3 + 7*5 + 3*5) = 142 in².

Front

What is the area of the base of a triangular prism with a base of 8 cm and height of 5 cm?

Back

Area = 1/2 × base × height = 1/2 × 8 cm × 5 cm = 20 cm².