Area of Polygons

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: Area = length × width.

Front

Calculate the area of a rectangle with a length of 13 ft and a width of 9 ft.

Back

Area = 13 ft × 9 ft = 117 ft².

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is calculated using the formula: Area = (base × height) / 2.

Front

Calculate the area of a triangle with a base of 14 ft and a height of 16 ft.

Back

Area = (14 ft × 16 ft) / 2 = 112 ft².

Front

What is the formula for the area of a circle?

Back

The area of a circle is calculated using the formula: A = πr², where r is the radius.

Front

Calculate the area of a circle with a radius of 4 cm.

Back

A = π(4 cm)² = 50.24 cm² (using π ≈ 3.14).

Front

What is the formula for the area of a parallelogram?

Back

The area of a parallelogram is calculated using the formula: Area = base × height.

Front

Calculate the area of a parallelogram with a base of 30 m and a height of 25 m.

Back

Area = 30 m × 25 m = 750 m².

Front

What is the formula for the area of a trapezoid?

Back

The area of a trapezoid is calculated using the formula: Area = (base1 + base2) × height / 2.

Front

Calculate the area of a trapezoid with bases of 10 m and 20 m, and a height of 5 m.

Back

Area = (10 m + 20 m) × 5 m / 2 = 75 m².