Area of Triangles, Trapezoids, and Parallelograms

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

How do you find the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height

Front

In a triangle, what is the base?

Back

The base is any side of the triangle, typically the one on the bottom.

Front

What is the height of a triangle?

Back

The height is the perpendicular distance from the base to the opposite vertex.

Front

What are the bases of a trapezoid?

Back

The bases are the two parallel sides of the trapezoid.

Front

What does it mean for lines to be parallel?

Back

Parallel lines never intersect and are always the same distance apart.

Front

If a triangle has a base of 10 cm and a height of 5 cm, what is its area?

Back

Area = 1/2 × 10 cm × 5 cm = 25 cm²

Front

If a trapezoid has bases of 6 cm and 10 cm and a height of 4 cm, what is its area?

Back

Area = 1/2 × (6 cm + 10 cm) × 4 cm = 32 cm²

Front

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

Back

Area = 8 m × 3 m = 24 m²