Make-up Composite Area Review

Front

What is a composite figure?

Back

A composite figure is a shape that is made up of two or more simple geometric shapes, such as rectangles, triangles, and circles.

Front

How do you find the area of a composite figure?

Back

To find the area of a composite figure, divide it into simpler shapes, calculate the area of each shape, and then sum those areas.

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 triangle?

Back

Area = 1/2 × base × height.

Front

What is the formula for the area of a circle?

Back

Area = π × radius².

Front

How do you round a number to the nearest hundredth?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place by one.

Front

If a rectangle has a length of 10 units and a width of 5 units, what is its area?

Back

50 square units.

Front

If a triangle has a base of 8 units and a height of 5 units, what is its area?

Back

20 square units.

Front

What is the area of a circle with a radius of 3 units?

Back

Approximately 28.27 square units.

Front

How do you calculate the area of a shaded region in a composite figure?

Back

Subtract the area of the unshaded part from the total area of the composite figure.