9.1.1 - 9.2.1 Area & Surface Area

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for finding the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the formula for finding the area of a circle?

Back

Area = π × radius².

Front

What is the formula for finding the circumference of a circle?

Back

Circumference = 2 × π × radius.

Front

What is the formula for finding the surface area of a cube?

Back

Surface Area = 6 × side².

Front

How many edges does a cube have?

Back

A cube has 12 edges.

Front

How many vertices does a cube have?

Back

A cube has 8 vertices.

Front

What is the relationship between area and surface area?

Back

Area refers to the size of a 2D shape, while surface area refers to the total area of the surface of a 3D object.

Front

What is the area of a square with a side length of 5 cm?

Back

Area = 5 cm × 5 cm = 25 cm².

Front

What is the surface area of a rectangular prism with length 4 cm, width 3 cm, and height 2 cm?

Back

Surface Area = 2(lw + lh + wh) = 2(4×3 + 4×2 + 3×2) = 2(12 + 8 + 6) = 2(26) = 52 cm².