Geometry - Extra Review for Area Flashcard

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the area of a triangle with a base of 10 units and a height of 5 units?

Back

Area = 0.5 × base × height = 0.5 × 10 × 5 = 25 square units

Front

Define the term 'circumference' in relation to circles.

Back

Circumference is the distance around a circle.

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

If the radius of a circle is 4 cm, what is its area?

Back

Area = π × 4² = 16π ≈ 50.27 cm²

Front

What is the height of a parallelogram if the area is 30 square units and the base is 10 units?

Back

Height = Area / base = 30 / 10 = 3 units

Front

What is the area of a trapezoid with bases of 8 units and 5 units, and a height of 4 units?

Back

Area = 0.5 × (base1 + base2) × height = 0.5 × (8 + 5) × 4 = 26 square units

Front

What is the relationship between area and units of measurement?

Back

Area is measured in square units (e.g., cm², m²).

Front

How do you find the area of a parallelogram?

Back

Area = base × height

Front

What is the area of a square with a side length of 6 units?

Back

Area = side² = 6² = 36 square units