Geometry Chapter 11 Extra Credit 1

Front

What is the formula for the area of a rectangle?

Back

Area = width × height

Front

Calculate the area of a rectangle with a width of 4 feet and a height of 4 feet.

Back

Area = 4 ft × 4 ft = 16 ft²

Front

What is the formula for the area of a square?

Back

Area = side × side

Front

Calculate the area of a square with each side measuring 6 cm.

Back

Area = 6 cm × 6 cm = 36 cm²

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height

Front

Identify the height of a parallelogram if the base is 5 m and the area is 9 m².

Back

Height = Area / base = 9 m² / 5 m = 1.8 m

Front

What is the formula for the area of a trapezoid?

Back

Area = (1/2) × (base1 + base2) × height

Front

If the area of a trapezoid is 27 cm² and the height is 3 cm, what is the average of the two bases?

Back

Average of bases = Area / height = 27 cm² / 3 cm = 9 cm

Front

What is the formula for the area of a triangle?

Back

Area = (1/2) × base × height

Front

Calculate the area of a triangle with a base of 10 km and a height of 3.78 km.

Back

Area = (1/2) × 10 km × 3.78 km = 18.9 km²