Warm-Up Area of Composite Figures

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, break it down 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

The area of a rectangle is calculated using the formula: Area = length × width.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is calculated using the formula: Area = 1/2 × base × height.

Front

What is the formula for the area of a circle?

Back

The area of a circle is calculated using the formula: Area = π × radius².

Front

What is a semicircle?

Back

A semicircle is half of a circle, formed by cutting a whole circle along its diameter.

Front

How do you estimate the area of a composite figure?

Back

To estimate the area, use approximate dimensions for the simple shapes and apply the area formulas, then sum the results.

Front

What is the significance of units in area measurement?

Back

Units in area measurement (like square centimeters or square feet) indicate the size of the area being measured.

Front

What is the area of a figure with a length of 10 cm and a width of 5 cm?

Back

Area = length × width = 10 cm × 5 cm = 50 cm².

Front

If a rectangle has an area of 24 cm² and a width of 4 cm, what is its length?

Back

Length = Area ÷ width = 24 cm² ÷ 4 cm = 6 cm.