Area (regular & irregular shapes)

Front

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

Back

Area = length × width

Front

If a rectangle has a length of 8 feet and a width of 5 feet, what is its area?

Back

40 square feet

Front

What is the formula for calculating the area of a square?

Back

Area = side × side

Front

If a square has a side length of 3 cm, what is its area?

Back

9 square cm

Front

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

Back

Area = 1/2 × base × height

Front

If a triangle has a base of 6 cm and a height of 4 cm, what is its area?

Back

12 square cm

Front

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

Back

Area = π × radius²

Front

If a circle has a radius of 5 inches, what is its area?

Back

78.54 square inches (using π ≈ 3.14)

Front

What is the difference between regular and irregular shapes in terms of area calculation?

Back

Regular shapes have a consistent formula for area calculation, while irregular shapes may require decomposition into regular shapes or other methods.

Front

How do you find the area of an irregular shape?

Back

You can divide it into regular shapes, calculate their areas, and then sum them up.