Area of Polygons

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

Calculate the area of a triangle with a base of 5 units and a height of 6 units.

Find the area of a square with a side length of 7 units.

What is the area of a parallelogram with a base of 10 units and a height of 4 units?

A triangle has a base of 10 cm and an area of 25 cm^2. What is its height?

A rectangle has an area of 36 m^2 and a width of 4 m. What is the height?

A parallelogram's area is 30 ft^2 with a base of 5 ft. What is the height?

What is the height of a trapezoid with bases of 4 in and 6 in, area 50 in^2?