Area of Regular Polygons and Composite Shapes

Front

What is the formula for the area of a regular polygon?

Back

Area = (1/2) * Perimeter * Apothem

Front

Define a composite shape.

Back

A composite shape is a figure that is made up of two or more simple shapes.

Front

How do you find the area of a composite shape?

Back

To find the area of a composite shape, calculate the area of each simple shape and then sum them up.

Front

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

Back

Area = (1/2) * base * height = (1/2) * 10 * 5 = 25 cm².

Front

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

Back

Area = length * width = 8 * 3 = 24 m².

Front

What is the area of a circle with a radius of 7 cm?

Back

Area = π * radius² ≈ 3.14 * 7² ≈ 153.86 cm².

Front

What is the perimeter of a regular hexagon with a side length of 4 cm?

Back

Perimeter = 6 * side length = 6 * 4 = 24 cm.

Front

How do you calculate the area of a trapezoid?

Back

Area = (1/2) * (Base1 + Base2) * height.

Front

What is the area of a square with a side length of 5 m?

Back

Area = side² = 5² = 25 m².

Front

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

Back

Area = base * height = 6 * 4 = 24 m².