Area and Surface Area

Front

What is the area?

Back

The area is the amount of space inside a two-dimensional shape, measured in square units.

Front

What is surface area?

Back

Surface area is the total area that the surface of a three-dimensional object occupies, measured in square units.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

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

Back

Surface Area = 2(lw + lh + wh), where l = length, w = width, h = height.

Front

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

Back

Area = 4 cm × 4 cm = 16 cm².

Front

What is the surface area of a cube with a side length of 3 cm?

Back

Surface Area = 6 × (3 cm × 3 cm) = 54 cm².

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its area?

Back

Area = 5 cm × 3 cm = 15 cm².

Front

What is the surface area of a cylinder with a radius of 2 cm and a height of 5 cm?

Back

Surface Area = 2πr(h + r) = 2π(2)(5 + 2) = 28π cm².

Front

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

Back

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

Front

How do you find the total surface area of a rectangular prism?

Back

Add the areas of all six faces of the prism.