Area of Triangles, Parallelograms, and Trapezoids

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 parallelogram?

Back

Area = base × height

Front

What is the formula for the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height

Front

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

Back

25 cm²

Front

What is the area of a parallelogram with a base of 8 m and a height of 3 m?

Back

24 m²

Front

What is the area of a trapezoid with bases of 6 cm and 10 cm, and a height of 4 cm?

Back

32 cm²

Front

If the base of a triangle is doubled, how does the area change?

Back

The area also doubles.

Front

What is the area of a rectangle with a length of 7 cm and a width of 4 cm?

Back

28 cm²

Front

What is the area of a square with a side length of 5 cm?

Back

25 cm²

Front

How do you find the height of a triangle if you know the area and the base?

Back

Height = (2 × Area) / base