12/5 - Compound Area Practice

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width

Front

How do you find the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is a composite figure?

Back

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

Front

How do you calculate the area of a composite figure?

Back

Find the area of each simple shape and then sum them up.

Front

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

Back

Area = 5 cm × 5 cm = 25 cm²

Front

If a rectangle has a length of 10 ft and a width of 9 ft, what is its area?

Back

Area = 10 ft × 9 ft = 90 ft²

Front

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

Back

Area = π × (radius)² = π × (3 cm)² ≈ 28.27 cm²

Front

How do you round a number to the nearest whole number?

Back

Look at the digit to the right of the decimal. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the area of a polygon with an area of 36 in²?

Back

The area is 36 in².

Front

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

Back

Calculate the area of the entire figure and subtract the area of the unshaded part.