Chapter 10: Areas

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 rectangle?

Back

Area = length × width

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

In a triangle, what is the relationship between the base and height?

Back

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

Front

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

Back

Area = 1/2 × 10 × 5 = 25 in²

Front

What is the area of a rectangle with a length of 8 feet and a width of 3 feet?

Back

Area = 8 × 3 = 24 ft²

Front

What is the area of a parallelogram with a base of 6 cm and a height of 4 cm?

Back

Area = 6 × 4 = 24 cm²

Front

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

Back

Area = 1/2 × (10 + 6) × 4 = 32 m²

Front

In a trapezoid, the bases are always __________.

Back

parallel