Area and Perimeter of Plane Figures

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 × (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 perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

What is the formula for the perimeter of a parallelogram?

Back

Perimeter = 2 × (base + side).

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 perimeter of a trapezoid?

Back

Perimeter = side1 + side2 + base1 + base2.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its area?

Back

Area = 10 cm × 5 cm = 50 cm².

Front

If a parallelogram has a base of 8 m and a height of 3 m, what is its area?

Back

Area = 8 m × 3 m = 24 m².