Area of Triangles and Parallelograms

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

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

What is the area of a rectangle with a length of 8 ft and a width of 4 ft?

Back

Area = length × width = 8 ft × 4 ft = 32 ft²

Front

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

Back

Height = Area ÷ base

Front

What is the area of a parallelogram with a base of 6 m and a height of 3 m?

Back

Area = base × height = 6 m × 3 m = 18 m²

Front

If the area of a rectangle is 60 ft² and the width is 10 ft, what is the length?

Back

Length = Area ÷ width = 60 ft² ÷ 10 ft = 6 ft

Front

What is the area of a triangle with a base of 12 cm and a height of 4 cm?

Back

Area = 1/2 × 12 cm × 4 cm = 24 cm²

Front

What is the relationship between the area of a rectangle and the area of a parallelogram with the same base and height?

Back

They have the same area.

Front

If a parallelogram has an area of 50 m² and a base of 10 m, what is the height?

Back

Height = Area ÷ base = 50 m² ÷ 10 m = 5 m