7.9C

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 = (base × height) / 2.

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

How do you calculate the area of a composite figure?

Back

To calculate 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 area of a semicircle with a radius of 4 cm?

Back

The area of a semicircle is calculated using the formula: Area = (π × radius²) / 2. For a radius of 4 cm, Area = (π × 4²) / 2 = 8π cm².

Front

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

Back

Area = length × width = 10 ft × 5 ft = 50 ft².

Front

What is the area of a right triangle with a base of 6 cm and a height of 3 cm?

Back

Area = (base × height) / 2 = (6 cm × 3 cm) / 2 = 9 cm².

Front

How do you find the area of a shaded region?

Back

To find the area of a shaded region, calculate the area of the larger shape and subtract the area of the unshaded part.

Front

What is the area of a rectangle with a length of 8 in and a width of 4 in?

Back

Area = length × width = 8 in × 4 in = 32 in².

Front

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

Back

Area = (base × height) / 2 = (10 m × 5 m) / 2 = 25 m².