2D Area Review

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height

Front

How do you find the area of a composite shape?

Back

Break the shape into simpler shapes, calculate the area of each, and then sum them up.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

If the area of a rectangle is 120 ft² and the base is 15 ft, how do you find the height?

Back

Height = Area ÷ base = 120 ft² ÷ 15 ft = 8 ft

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height

Front

How do you calculate the area of a circle?

Back

Area = π × radius²

Front

What is the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height

Front

What is the significance of units in area measurement?

Back

Area is measured in square units (e.g., cm², m²) to represent two-dimensional space.

Front

What is the area of a shaded region?

Back

It is the area of the entire shape minus the area of the unshaded part.

Front

How do you approximate the area of irregular shapes?

Back

Use grid paper or geometric shapes to estimate the area.