Area of parallelograms, triangles, and trapezoids

Front

What is the formula for the area of a parallelogram?

Back

A = b x h, where A is the area, b is the base, and h is the height.

Front

What is the formula for the area of a triangle?

Back

A = 1/2 (b x h), where A is the area, b is the base, and h is the height.

Front

What is the formula for the area of a trapezoid?

Back

A = 1/2 (b1 + b2) x h, where A is the area, b1 and b2 are the lengths of the two bases, and h is the height.

Front

What is the area of a rectangle with a length of 10 m and a width of 5 m?

Back

50 m² (A = l x w = 10 m x 5 m).

Front

What is the area of a triangle with a base of 8 cm and a height of 5 cm?

Back

20 cm² (A = 1/2 (8 cm x 5 cm)).

Front

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

Back

32 m² (A = 1/2 (6 m + 10 m) x 4 m).

Front

What is the area of a parallelogram with a base of 12 ft and a height of 5 ft?

Back

60 ft² (A = 12 ft x 5 ft).

Front

What is the area of a triangle with a base of 10 in and a height of 3 in?

Back

15 in² (A = 1/2 (10 in x 3 in)).

Front

What is the area of a trapezoid with bases of 8 ft and 12 ft, and a height of 5 ft?

Back

50 ft² (A = 1/2 (8 ft + 12 ft) x 5 ft).

Front

What is the area of a parallelogram with a base of 15 m and a height of 10 m?

Back

150 m² (A = 15 m x 10 m).