Geometry - Chapter 10 Review - Area

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the formula for the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

What is the area of a sector of a circle?

Back

Area = (θ/360) × π × radius², where θ is the angle in degrees.

Front

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

Back

Area = π × (5)² = 25π in².

Front

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

Back

Area = side × side = 4 × 4 = 16 in².

Front

How do you find the area of a composite shape?

Back

Divide the shape into simpler shapes, find the area of each, and then sum them up.

Front

What is the area of a circle with a diameter of 10 inches?

Back

Area = π × (5)² = 25π in² ≈ 78.5 in².

Front

What is the area of a lawn that is 100 ft by 80 ft?

Back

Area = length × width = 100 × 80 = 8000 ft².